headLINES Men happiest online NPR builds online community MI6 recruits on Facebook YouTube launches more analytics Letterman bashes McCain VoteForChange Twitter launches election site techTIPS - Web Video Format Picks Flash H.264 (MPEG-4 AVC) Windows Media Video (WMV) MPEG-4 Part 2 (ASP) webPICKS Facebook 2.0 on iPhone iPhone icon coasters