Some great blog carnivals this week; visit them if you want to read good blog posts on the following topics:

- Update 1: great edition of the Philosophers’ Carnival.

- Update 2: Encephalon #40: all topics neuroscience and psychology.

- Grand Rounds last week and this week: on health and medicine.

- Carnival of Education #160: on educational issues.

- Carnival of Mathematics #27.: great collection of math-related resources.