Rafflecopter has become the gold standard for contests and giveaways on blogs. It's an easy ad streamlined way to get Facebook likes, Twitter followers and comments. The question that I have to ask is if this good or more of a pain for the people entering the contests?
I started blogging back in the days before Rafflecopter. It wasn't easy, but we managed. You posted the giveaway and how people got entries. Often, it was a comment and then they had to say that they were a Twitter of Facebook follower.
When the contest ended, you assigned each person a number and put it through a randomizer that picked out a number and voila, the winner was announced. Rafflecopter came in a few years ago and steadily built steam.
It allows people to have hundreds of entries based on requirements of your choice. People can get five entries for liking a certain number of pages, another five for visiting blogs, etc. In the end, you click a button and Rafflecopter chooses a person at random as the winner. They even give you their e-mail address.
Rafflecopter also allows for several blogs to get together for large giveaways. Bloggers love it because its an easy way to run a contest, but as the person entering, I'm not a big fan. I don't mind liking a few people for a contest, but sometimes you have to like dozens of people. Sure, it's my choice and I could simply not to that one, but I know that most people are and I'm decreasing my chances of winning.
Rafflecopter annoys me and while I understand its use, it's taking the personal touch out of contests and giveaways.