You forgot about PSPUpdates
hehe, PSPU gives fair warning to those who download any "beta" downgrader or anything that may harm the PSP :P They did that with PSPersonalize, so I'm sure they will give warning to when it comes out. I have yet to see a fake article besides that one guy who said he hacked 1.51/2 that all PSP sites posted :P They also gave fair warning to users of the MS swap as well.
Hehe, I just notied they were missing from the list, so I thought I would tell ya
Anyways, I always check out these two sites to make sure ya got the news :P It's better to clarify news than to assume that it is always true..