Club Carlson is giving 1,000 points to the first 15,000 people who follow them on Twitter and register at this link.  Club Carlson is the rewards program for Radisson, Country Inn, Park Inn and Park Plaza Hotels. Before you dismiss this, Club Carlson has a very strong presence in Europe and if you get their credit card, you will receive your last night free when paid with points!

Note: Registration is limited to the first 15,000 people so I would do this ASAP!