As you can see on my updated Hotel Promotions page, Hilton HHonors has announced a Spring promotion, whereby you can earn up to 9,000 HHonors points per paid stay between February 1, 2014 and April 30, 2014. You'll earn 1,000 HHonors points per paid Thursday, Friday, Saturday, or Sunday night stay, plus 5,000 HHonors points per 2-night stay that includes 2 or more of those nights. Register for the promotion here, and find the list of non-participating properties here.
Many bloggers have panned this promotion for not offering outsized rewards. Fair! I stay in a fair number of Hiltons because of their convenient downtown locations, HHonors points are relatively easy to earn with the no-annual-fee Hilton HHonors American Express or $75-annual-fee Surpass, and because as a Gold member I receive free breakfast for myself and anyone else staying in my room. So I consider it a decent possibility that I'll end up earning a few thousand points through this promotion, which is why I registered right away, before I forgot.