Having view a number of Giveaway Events, I think this is it for now. Unless the contributors are established in the internet marketing community, it is a waste of time. Even for total newbies, I am not convinced that Giveaways are beneficial. Yes, there are many resources in the Giveaways that are useful, but most of it is rehashed. And worse, many contributors are new to internet marketing themselves. For example, the same ebooks being offered by multiple contributors. There are just too many of them.
I've said it and I'll say it again. If contributors can't put together a lead capture page, who's going to want to subscribe to your list? While there are some with some good offers, the majority are just.......
For myself, I've found that only about 1% are really useful. That is I only download 4 ebooks from close to 500 contributors. Would you believe the contributors do not check their copy? What is Adsence?
By the way, who is going to download 500 wordpress themes? Are you kidding me? People, there is just too much junk on the internet these days.