What is the best way to add free Twitter followers?

[LiteJunction]

Let's all post where and how we add free Twitter followers, Facebook likes, and Google +1s from.

Here are my top 3 websites that I use:

1) Tweers.com - Followers, Likes, +1s, Stumbles, YouTube Views
2) Twiends.com - Followers
3) TwitClub.com - Followers

What sites, techniques, or software that you use?

 

[foxman]

Some use black hat methods.