Mysql Timestamps

All that you want to know abouy MySQL timestamps is well documented here.

http://www.gizmola.com/blog/archives/93-Too-much-information-about-the-MySQL-TIMESTAMP.html

Twitter extensions

Twitter is on rage these days.
Twitters apps as firefox extensions just keeps on increasing

https://addons.mozilla.org/en-US/firefox/search?q=twitter&cat=all