Google shortlisted 40 Regional finalists for Doodle 4 Google. They are under 4 grade groups. You can see few samples below.

Now you can go to the Shortlisted page here and vote for the doodle you like (One on each grade group). Voting is open from May 18, 2010 6:00 a.m. Pacific Time (PT) to May 25, 2010 5:00 p.m. Pacific Time (PT). On may 26th Google will announce the finalists and Winners of this competition. The winner's doodle will be displayed on Google on May 27, 2010.

Here is a small tip to reduce memory usage of messengers whom used to work from system tray. Normally when you close a messenger window it will be minimized to system tray. Instead of closing it to system tray (clicking the x ), just minimize this to task bar. And if you want to use it from system tray then

1. Minimize the messenger to task bar

2. Right click and choose close.

If you want to test this here is the screen shots

1. Messenger  maximized

2. Messenger closed(To Tray)

3. Messenger Minimized (To task Bar)

4. Messenger Closed( From Task bar [after minimizing] to System Tray)

This is applicable for MSN messenger, Gtalk ( I tested this only on these messengers, but I think this is applicable to all). If the application is having a facility to go to system tray when minimizing (like windows live mail) that is better than close to system tray.

Also Check.

Memory management for windows users

Firefox Memory Tweak