Some good websites and credit cards...

hotelscombined.com

kayak.com

priceline.com (bidding for travel)

adwardswallet.com

TOP CREDIT CARDS FOR POINTS:
Chase Saphire Preferred
Starwood Preferred & Guest Credit Card

Wonder if any have started adding that 4% surcharge???

The Hilton Amex and Visa cards are also very good; with a huge selection of hotels

Hilton has Amex and Visa cards? I did not know this