Great tool to stop wasting time with web sites
Having a web browser on your computer is like having a television on your desk. Dangerous stuff for a procrastinator.
The free Firefox web browser (available at www.getfirefox.com) has an great add-on available called LeechBlock (available at https://addons.mozilla.org/en-US/firefox/addon/4476). This add-on lets you block chosen web sites completely during your working hours, or set a maximum amount of time per day that you can spend visiting those sites. All you have to do to add a site to the list of blocked sites is right-click on the web page and select the LeechBlock menu, or select LeechBlock from the web browser's Tools menu. Even better, you can tell LeechBlock to not let you remove the blocks during your working hours.
Internet Explorer does not have this, so what I've done is switched to Firefox for all my browsing, and I've removed Internet Explorer from my desktop. I've heard there are some web sites which don't work in Firefox but in the last year I've never come across one. I've read that about 25% of web users are using Firefox.