I recently got an email from LinkedIn about groups. Here is an excerpt:

"As an active member of LinkedIn Groups, we wanted to let you know about some changes we're putting in place in the coming weeks.

We are in the process of adding new functionality to enhance the experience of Groups, including the recent release of a searchable directory. We are also working with our development teams to bring new tools and widgets to this collaborative space throughout the rest of 2008."

So more tools and functionality are coming soon. I think that this is great news and will add more collaborative functionality to the communities (groups). In the email they also noted that they have set a limit of 50 groups that you can belong to.

Since we are talking about LinkedIn, here is a shameless plug for my Flash Coders group:

Flash Coders