I'm in a similar position to you. Since going solo I've missed working with other people and have found that I'm learning new skills slower without regular code reviews, pair programming, etc. Here are some solutions I've been looking at:

1) Join a small company, such as a startup or web dev studio. The small size will ensure you have a chance to have a varied role and to do lots of different things.

2) Team up with other local developers to form a cooperative or studio of your own.