The quite useful and the absolutely useless links
At the request of Henry Killinger on a note, I'm going to post a list of stuff everybody can feast on for some time. I'll repeat the posted ones for them to out-live the presence on the comments section.
h2. The Useful
* Use <<www.virustotal.com/|VirusTotal>> to check files for viruses. It will make you aware of how crappy some anti-viruses are (like McAfee), how many of them make up many false-positives, and how good some are (like Kaspersky), and you know what? I don't use an anti-virus (and haven't been infected in years), so it's quite handy once in a while.
* Use <<tinypng.org/|TinyPNG>> to compress PNGs.
* Use <<regex.info/exif.cgi|Metadata Viewer>> to see some of what's in certain filetypes.
* Use <<imgur.com/|Imgur>> to upload images. <<eho.st/|Eho.st>> also works.
* Use imgur to lose time <<imgur.com/r/redheads|by looking at sub-reddits with it>>! (see how the URL looks like).
* Use <<anubis.iseclab.org/|Anubis>> to see what running a program will basically do (a bit advanced).
* Use <<codecguide.com/download_k-lite_codec_pack_mega.htm|K-Lite Mega>> codec pack and <<sourceforge.net/projects/mpcbe/|MPC Black Edition>>.
* Use <<userscripts.org/scripts/show/114002|Youtube Center>> (By the way, the player I mentioned above can play back youtube links directly!).
* Use <<uptimerobot.com/|Uptime Robot>> to see if your website (or someone else's) is up or down, it checks each 5 minutes (for free).
* Besides Google's reverse image search, <<iqdb.org/|IQDB>> does it for boorus and <<saucenao.com/|SauceNao>> does it for Pixiv.
* Look up animes on <<anidb.net/|AniDB>>. Hentai lookup requires an account and settings change.
* Upload files on <<mega.co.nz/|Mega>> and download them on <<thepiratebay.sx/|ThePirateBay>> and friends.
* Do I even need to mention E-Hentai/ExHentai?
* Use <<mrob.com/pub/ries/index.html|RIES>> to find equations, given their solutions.
* Use <<www.wolframalpha.com/|WolframAlpha>> to find solutions, given their equations. (No, seriously, check that out!)
* Use <<shapecatcher.com/|ShapeCatcher>> to find an Unicode character by drawing its shape. Doesn't work for CJK.
* For the CJK characters that we give one damn or more about, use <<kanji.sljfaq.org/draw-canvas.html|Handwritten Kanji Search>>.
* Use <<2cyr.com/decode/|Mojibake Decoder>> to fix filenames that have been shat upon by the differences in character encodings of two different countries.
* Use <<justdelete.me/|Just Delete Me>> when you don't know how to get rid of an account at some site.
* Use <<www.bugmenot.com/|BugMeNot>> when you don't want to even create an account at some site.
* Use <<grooveshark.com/|Grooveshark>> to listen to music.
* If you feel geeky, download videos and songs from websites that don't have a download button using the "Network" tab of the developer tools for your browser.
* You can also just use things like <<sounddrain.com/|SoundDrain>> or <<savevideo.me/|SaveVideo>>.
* Have lots of file-sharing links? Use something like <<pyload.org/|pyLoad>> or <<jdownloader.org/|jDownloader>>.
* Hate having to type captchas for either of those? There are sites where you can solve captchas for other people, gain points for that, and use those points so your downloader of choice can download a big list for you overnight or when you are away. I use <<www.9kw.eu/index.html|9kw>> (beware that the landing page is in German though).
* Where is a site hosted at? <<geomaplookup.net/|Look it up>>.
* is it <<www.downforeveryoneorjustme.com/|Down For Everyone Or Just Me?>>
This list could go on and on... and I didn't mention many desktop software which make my computer life great, like <<getgreenshot.org/|Greenshot>>. It can upload screenshots directly to Imgur after you take them! None of that PrintScreen->MSPaint bullshit anymore.
h4. Also:
* See how often words were used in literature across the years, decades and centuries with <<books.google.com/ngrams|Google Ngram Viewer>>.
* See how much it will take for all people to <<gs.statcounter.com/|drop Internet Explorer>>.
* When you'll have to give to the dog whatever food you're storing for "later"? Check out <<www.stilltasty.com/|StillTasty>>.
* Some <<kanjidict.stc.cx/|Japanese-related tools>>.
* Do you know <<scaleofuniverse.com/|how big the universe is>>?
Gosh, I better stop with the useful ones.
h2. The Useless
* <<chrismckenzie.com/|Move your mouse>>.
* <<www.staggeringbeauty.com/|Move it even more>>.
* <<feedthehead.net/|Feed it>>.
* <<procatinator.com/|Listen and look>>.
* <<www.sanger.dk/|Clean your monitor from the inside out>>.
* <<www.trypap.com/|Try harder>>.
* <<www.omfgdogs.com/|OMFG, Dogs!>>
* <<fc02.deviantart.net/fs70/...y_neoslashott-d49iof2.swf|Bat-cat!>>
* <<isitchristmas.com/|Is it Christmas?>>
* <<hasthelargehadroncolliderdestroyedtheworldyet.com/|Has the Large Hadron Collider destroyed the world yet?>>
* <<willthefuturebeaweso.me/|Will the future be awesome?>>
* <<www.oppositeofpoop.com/|What is the opposite of poo?>>
* <<www.ismycomputeron.com/|Is my computer on?>>
* <<iloveyoulikeafatladylovesapples.com/|Apple products>>.
* <<www.pleaselike.com/|An extrapolation of current tendencies>>.
* <<www.riddlydiddly.com/|Ned Flanders feat. Nightwish>>.
* <<www.ooooiiii.com/|ooooiiii>> <<www.dabadabadab.com/|dabadabadab>> <<www.iiiiiiii.com/|iiiiiiii>> <<www.lalalaa.com/|lalalaa>>.
* <<www.wwwdotcom.com/|Now say this last URL over the phone...>>
Edit: by popular demand,
h2. Moar Useless
* <<anasomnia.com/|Anasomnia>>
* <<zoomquilt2.madmindworx.com/zoomquilt2.swf|Zoom Quilt>>
* <<www.boohbah.tv/zone.html|Boohbah Zone>>
* <<www.cubo.cc/creepygirl/|Creepy Girl>>
* <<www.superbad.com/|Superbad>>
* <<www.koehnline.com/newgifs/comp4iii.html|Tile Gifs>>
* <<neave.com/imagination/|Neave's Imagination>>
* <<hippohippo.ytmnd.com/|Hippo, Hippo, Hippo, Hippo.>>
* <<therevolvinginternet.com/|Revolving Internet>>
* <<larrycarlson.com/flash-movies/|Larry Carlson's Movies>>
* <<www.larrycarlson.com/medijate/index2.htm|Medijate>>
* <<neave.com/television/|Television Without Context>>
* <<comic.naver.com/webtoon/detail.nhn?titleId=350217&seq=31|The Bongcheon-Dong Ghost>>
* <<neave.com/strobe/|Strobe>>
* <<www.unsound.com/flow/flow.swf|Flow>>
Now don't complain, you asked for something to kill brain cells with :)
h2. The Useful
* Use <<www.virustotal.com/|VirusTotal>> to check files for viruses. It will make you aware of how crappy some anti-viruses are (like McAfee), how many of them make up many false-positives, and how good some are (like Kaspersky), and you know what? I don't use an anti-virus (and haven't been infected in years), so it's quite handy once in a while.
* Use <<tinypng.org/|TinyPNG>> to compress PNGs.
* Use <<regex.info/exif.cgi|Metadata Viewer>> to see some of what's in certain filetypes.
* Use <<imgur.com/|Imgur>> to upload images. <<eho.st/|Eho.st>> also works.
* Use imgur to lose time <<imgur.com/r/redheads|by looking at sub-reddits with it>>! (see how the URL looks like).
* Use <<anubis.iseclab.org/|Anubis>> to see what running a program will basically do (a bit advanced).
* Use <<codecguide.com/download_k-lite_codec_pack_mega.htm|K-Lite Mega>> codec pack and <<sourceforge.net/projects/mpcbe/|MPC Black Edition>>.
* Use <<userscripts.org/scripts/show/114002|Youtube Center>> (By the way, the player I mentioned above can play back youtube links directly!).
* Use <<uptimerobot.com/|Uptime Robot>> to see if your website (or someone else's) is up or down, it checks each 5 minutes (for free).
* Besides Google's reverse image search, <<iqdb.org/|IQDB>> does it for boorus and <<saucenao.com/|SauceNao>> does it for Pixiv.
* Look up animes on <<anidb.net/|AniDB>>. Hentai lookup requires an account and settings change.
* Upload files on <<mega.co.nz/|Mega>> and download them on <<thepiratebay.sx/|ThePirateBay>> and friends.
* Do I even need to mention E-Hentai/ExHentai?
* Use <<mrob.com/pub/ries/index.html|RIES>> to find equations, given their solutions.
* Use <<www.wolframalpha.com/|WolframAlpha>> to find solutions, given their equations. (No, seriously, check that out!)
* Use <<shapecatcher.com/|ShapeCatcher>> to find an Unicode character by drawing its shape. Doesn't work for CJK.
* For the CJK characters that we give one damn or more about, use <<kanji.sljfaq.org/draw-canvas.html|Handwritten Kanji Search>>.
* Use <<2cyr.com/decode/|Mojibake Decoder>> to fix filenames that have been shat upon by the differences in character encodings of two different countries.
* Use <<justdelete.me/|Just Delete Me>> when you don't know how to get rid of an account at some site.
* Use <<www.bugmenot.com/|BugMeNot>> when you don't want to even create an account at some site.
* Use <<grooveshark.com/|Grooveshark>> to listen to music.
* If you feel geeky, download videos and songs from websites that don't have a download button using the "Network" tab of the developer tools for your browser.
* You can also just use things like <<sounddrain.com/|SoundDrain>> or <<savevideo.me/|SaveVideo>>.
* Have lots of file-sharing links? Use something like <<pyload.org/|pyLoad>> or <<jdownloader.org/|jDownloader>>.
* Hate having to type captchas for either of those? There are sites where you can solve captchas for other people, gain points for that, and use those points so your downloader of choice can download a big list for you overnight or when you are away. I use <<www.9kw.eu/index.html|9kw>> (beware that the landing page is in German though).
* Where is a site hosted at? <<geomaplookup.net/|Look it up>>.
* is it <<www.downforeveryoneorjustme.com/|Down For Everyone Or Just Me?>>
This list could go on and on... and I didn't mention many desktop software which make my computer life great, like <<getgreenshot.org/|Greenshot>>. It can upload screenshots directly to Imgur after you take them! None of that PrintScreen->MSPaint bullshit anymore.
h4. Also:
* See how often words were used in literature across the years, decades and centuries with <<books.google.com/ngrams|Google Ngram Viewer>>.
* See how much it will take for all people to <<gs.statcounter.com/|drop Internet Explorer>>.
* When you'll have to give to the dog whatever food you're storing for "later"? Check out <<www.stilltasty.com/|StillTasty>>.
* Some <<kanjidict.stc.cx/|Japanese-related tools>>.
* Do you know <<scaleofuniverse.com/|how big the universe is>>?
Gosh, I better stop with the useful ones.
h2. The Useless
* <<chrismckenzie.com/|Move your mouse>>.
* <<www.staggeringbeauty.com/|Move it even more>>.
* <<feedthehead.net/|Feed it>>.
* <<procatinator.com/|Listen and look>>.
* <<www.sanger.dk/|Clean your monitor from the inside out>>.
* <<www.trypap.com/|Try harder>>.
* <<www.omfgdogs.com/|OMFG, Dogs!>>
* <<fc02.deviantart.net/fs70/...y_neoslashott-d49iof2.swf|Bat-cat!>>
* <<isitchristmas.com/|Is it Christmas?>>
* <<hasthelargehadroncolliderdestroyedtheworldyet.com/|Has the Large Hadron Collider destroyed the world yet?>>
* <<willthefuturebeaweso.me/|Will the future be awesome?>>
* <<www.oppositeofpoop.com/|What is the opposite of poo?>>
* <<www.ismycomputeron.com/|Is my computer on?>>
* <<iloveyoulikeafatladylovesapples.com/|Apple products>>.
* <<www.pleaselike.com/|An extrapolation of current tendencies>>.
* <<www.riddlydiddly.com/|Ned Flanders feat. Nightwish>>.
* <<www.ooooiiii.com/|ooooiiii>> <<www.dabadabadab.com/|dabadabadab>> <<www.iiiiiiii.com/|iiiiiiii>> <<www.lalalaa.com/|lalalaa>>.
* <<www.wwwdotcom.com/|Now say this last URL over the phone...>>
Edit: by popular demand,
h2. Moar Useless
* <<anasomnia.com/|Anasomnia>>
* <<zoomquilt2.madmindworx.com/zoomquilt2.swf|Zoom Quilt>>
* <<www.boohbah.tv/zone.html|Boohbah Zone>>
* <<www.cubo.cc/creepygirl/|Creepy Girl>>
* <<www.superbad.com/|Superbad>>
* <<www.koehnline.com/newgifs/comp4iii.html|Tile Gifs>>
* <<neave.com/imagination/|Neave's Imagination>>
* <<hippohippo.ytmnd.com/|Hippo, Hippo, Hippo, Hippo.>>
* <<therevolvinginternet.com/|Revolving Internet>>
* <<larrycarlson.com/flash-movies/|Larry Carlson's Movies>>
* <<www.larrycarlson.com/medijate/index2.htm|Medijate>>
* <<neave.com/television/|Television Without Context>>
* <<comic.naver.com/webtoon/detail.nhn?titleId=350217&seq=31|The Bongcheon-Dong Ghost>>
* <<neave.com/strobe/|Strobe>>
* <<www.unsound.com/flow/flow.swf|Flow>>
Now don't complain, you asked for something to kill brain cells with :)