This is May, which mean that Brenda Novak’s annual Diabetes Auction is in full swing.  There is a lot of goodies being offered, plus the money goes to charity.
Another auction is HelpWriteNow.  This auction raises money to help Tornado Victims.  Also a lot of goodies being offered.

And the contests… is four enormous contests, courtesy of Moira Rogers and Vivian Arend. More info here.