Blog carnivals are a wonderful thing: a bunch of bloggers with related topics take turns writing capsule summaries of other blog entries, forming a sort of meta-blog on a topic. I've stumbled across a number in biology, and there are three which I contribute to somewhat erratically (I really need to put the deadlines on my calendar!), Gene Genie, Mendel's Garden and Bio::Blogs. Each of these have new editions out, with Eye on DNA hosting the latest Gene Genie, The Daily Transcript hosting Mendel's Garden and Pedro Beltrao editing Bio::Blogs
A related concept is a shared feed, and I belong to The DNA Network. Indeed, this is my main blog feed now which gets checked regularly -- a nice bit of one-stop-shopping.