Free 4 Day IP Boost

[Camp Commando]

Free 4 Win IP Boost

Check the forum announcements. If you have played in the past 60 days, you get one free.

 

[Ramp]

Its a free 4 win IP boost, not 4 days.

 

[JunK]

heres the link:
http://www.leagueoflegends.com/board/showthread.php?t=240561