Internet-based communication is changing so quickly these days that there seems to be an endless stream of beta releases. Yesterday, Simon wrote about some of the latest browser betas; let’s look at a few products and services for interacting with social networks, Twitter and instant messaging.

I don’t generally like living on the bleeding edge, but some betas are very usable, and I’ve already incorporated them into my daily workflow. Others look promising, but are not stable or are lacking too many features right now. But all of the following are worth trying, and watching as they develop. We’ll review them more thoroughly as they mature.

Adium is my favorite IM client for the Mac OS. Its latest beta supports all of the instant messaging protocols, and also has rudimentary support for Twitter and Facebook Chat. Unfortunately, the latter is not working as I write this, although a fix is expected shortly.

VoxOx is an ambitious program combining IM; social networks (Facebook, MySpace and Twitter); SMS texting; faxing; private email; file sharing; video conversat