Why do Academics do this blogging thing?

A number of my SciBlings (and their commenters) try to explain:

Janet
Chad
Martin
PhysioProf
DrugMonkey
Brian Switek
Alice
Jeremy Bruno
Grrrrrl

More like this

This sucker was filmed in the Gulf of Mexico swimming among the oil rigs!!! It propelled itself with undulations of its dorsal fin and looks a lot like a sea serpent.