Still trying to catch up - no knitting last night, spent the evening going through mail, reading the new Family Circle Easy Knitting (didn't really see anything that grabbed me but that's typical of Spring/Summer issues) and the new RealSimple.

A couple of cell bio sites (since I've received nearly as much positive feedback about the bio/science sites as the knitting content):
Cells Alive has some cool (i.e., gross) pictures of cells and other microscopic beings - including a dust mite (why is it that students get so shrecked up about these? It's not like you can SEE them in real life...)
Cell Biology is a little bit more advanced-level, but it has some interesting information on it and cool electron micrographs of cell organelles.