On Mac OS X I have an app that plays a sound when I enter certain sites. I want a similar software to use on Linux. Does anybody know one?
There is always Rescue Time which monitors websites you visit. It doesnt slap you or anything, but it can give you a report on where you are wasting time. They even have 32 bit and 64 bit DEB files to install, plus the app in Firefox and Chrome.
Its free for basic uses, but is $6 a month if you would like to block websites, monitor how much time you spend on a doc, etc.
DEB files and RPMs here...
If you use Firefox, you can try LeechBlock, an extension "designed to block those time-wasting sites that can suck the life out of your working day". It's highly configurable and could change your life if you suffer of this kind of problem.
there is an app called aplomb which was made as a part of the ubuntu app showdown a few months ago... i'll try n get a link to it n edit the amswer asap...if u find it,well and gud... it lets u block sites for ur deaignatd amnt f time! :) here is the link to the launchpad page- https://launchpad.net/~snwh/+archive/aplomb