http://blurtit.com/ -- this is for blog (text link)

http://eplugz.uni.cc/ -- 88 x 31 button plug

http://www.plug-planet.co.uk/ --- text, tag, banner, button

http://www.plug-me.crush-me.net/ -- 50 x 50 and 88 x 31

http://www.plugboard.net/ -- 88 x 31

http://www.shameless-plug.com/ -- 88 x 31

http://www.acidgloss.net/surfit/ -- 88 x 31 and 468 x 60

Hope it's useful