someone already posted working keys for those:
windows 7 pro with service 1 GD336-7YRMV-K9TH4-Q9YT3-KR43T
windows 8 pro NYC3G-KJ4DB-TGKR4-GC8YX-JW8XV
office 2013 pro plus 9RNQD-TV2YY-4X989-MXTTQ-JTWQD
server 2008 r2 FFF2C-RKVB7-PXBMB-YKFFJ-R7RR7
server 2012 essentials XKNC8-637GW-7JV9V-W8MH6-XP77W
sbs server 2011 D7BBQ-PV89H-288W4-M96KY-7XBXW