building an email list

Hi, I've done all the site building, establishing giveaways, etc. Now I have to build my email list (on a shoestring budget). So far, I've been posting in Facebook groups and asking blogs to review my products. Any other ideas that people can share? Thanks!

Hey, butterfly marketing was just released today. Does anyone have a copy of that. I am looking to build a email list and it sounds like there is a way to do it quickly. If anyone can help me I would be very interested. thx.