I have a really bad habit of getting on facebook/twitter when I should be doing something important, and end up wasting hours of time. This is especially bad when deadlines loom and the call of the newsfeed is too strong.

KeepMeOut! is a service that will force productivity on you when willpower alone doesn't do the trick. You pick the website that you can't stay away from, set the number of times you can visit it per set amount of time (ie. 1 visit per 60 mins.), and then change your bookmark of that site to the custom URL they give you.

Check out KeepMeOut! next time you have a paper to write, and see what it felt like to try and do homework before the internet.