Camsoda is a popular Live cam site, which also has some pre-recorded material as well. Some pornstars and famous amateurs can be found on this site, and (at least at the time of writing) it was free to join the site. Like most of these sites, it uses a token or tipping system, which encourages you to buy credits to tip the girls to encourage them. Streaming looks good, and the lag (time between what you type and the performer answering or reacting) is better than some sites. The site has a lot of performers on it, and seems to be very active.