So far it has been easy as heck to get twitter followers. To get blog followers and people to keep reading the blog has been a bit harder. You actually have to work for them. Giveaways help, you also need to have readable content. I think i do! I think i write about funny good things!
A friend blogger does $5 Starbucks gift card giveaways, one every month or so. She's gained a lot of FB and blog followers that way, for a small cash outlay. Apparently you can no longer do giveaways ON Facebook, but you can do it on your blog and advertise your blog post on FB, to get more followers.