At the moment, I have my forums hosted a very basic LAMP stack, and it only uses about 0.01 of memory. I'm hosting it with Linode on a 1 GB VPS. At most, I have 80-100 users (and guests) online at a time (according to "Members Online Now"). Although, the normal amount is about 40-60 depending on the time of day.
Do you think that I would be okay on shared hosting? At the moment I'm paying $40 a month, and I'm looking for a cheaper solution, and obviously shared hosting is the cheapest.