Today’s carnivals

The latest Change of Shift is up on The Nurse Practitioner’s Place
The Teaching Carnival is back after a long hiatus. The Teaching Carnival 3.2 is up on Planned Obsolescence
And start writing and submitting your posts for the next Praxis, on March 15th 2009, at The Lay Scientist, and for The Giant’s Shoulders on March 16th at The Evilutionary Biologist.