Hilton is offering those with a US-issued Signature Visa credit card instant HHonors Gold status through August 31, 2011. If you stay three times by August 31, 2011, your Gold status will be extended through March 2013.
For those that are already HHonors Gold or Diamond members, registering for the above offer will earn you 5,000 bonus Hilton HHonors points (which will post in 1-2 weeks).
While Hilton’s top tier status isn’t all that great, they have one of the best mid tier elite programs, with upgrades to club rooms on a space available basis. Actually, one of the major problems with the HHonors program is that there’s not enough differentiation between their top tier and their middle tier.