Well, you should! There are some amazing things being given away on blogs these days, usually for little more than your time to check out the donor's website and comment on what it is you like. I won an awesome t-shirt from peacelovemom.com a few months ago by entering a giveaway from the wonderful Funky Finds blog. There's always something great being given away over there so go check it out!
Lately, I've been drooling like a 3-month old over gorgeous baby stuff so Bellaziza's Favorite Things has become a daily virtual stop for me. This week, they are giving away a Peg Perego carseat! What a dream that would be to win. (Um, so don't win that one, ok? I need it. :) ) Bellaziza has earned a permanent place in my sidebar for being so very super.
Look through the etsy forums (usually in Promotions) for notices of blog giveaways, or search your favorite blog network site (like blogcatalog.com) for keyword "Giveaway". Good luck!