Amyloid β-Peptide as an Antimicrobial Peptide

Chuck brought this paper to our attention yesterday, and I thought I'd mention it here - I cannot judge how strong and flawless the results are (antimicrobial peptides are clearly not my field), but in my opinion the paper is written in a very clear prose, presents easy to understand results, and it is published in as close to open source a journal as you can get. And they're from the Boston area.
http://dx.doi.org/10.1371/journal.pone.0009505
Finally an easily-stated, elegant proposition for the physiological role of Abeta peptides...

And also, some coverage in the NYT:
http://www.nytimes.com/2010/03/09/health/09alzh.html