Before you get started, be sure you have a clear picture of what your group is about and who good group members would be. Define any key words or key roles or attributes that you'd be looking for.
1. Find people
Search Profiles for people on My developerWorks and invite them to join your group by writing on their wall. You can find people based on tags, roles, country, etc.
2. Find blogs
Search My developerWorks blogs using tags to look for bloggers who write about topics relevant to your group. Then go to their profile and write on their wall and invite them to join. You should also start following their blog and begin commenting on their posts, and develop an ongoing relationship - this builds the possibility of genuine, useful networking in the future. If you feel comfortable or have a good relationship with a blogger, you could also ask if they'd be willing to blog about your group. Also, look outside of My developerWorks to bloggers who write about your topic. Begin commenting on their blog and forming a relationship with them.
3. Use a watchlist
Set up key words to watch on your watchlist on My developerWorks. Check everyday to see who is active and then go to their profile, write on their wall, and invite them to join.
4. Reach out to your extended network
If you use Twitter, LinkedIn, Facebook, or other social sites in a professional capacity, invite your network to join your group. You can also post group updates and news within these types
5. Ask your group members for help
Email your existing group members and share your vision to grow the group, ask if they could invite people in their network to join. It will help if you give them text they could use in an email.
6. Connect with related groups
Search for other related groups on My developerWorks. For example, if your group is about jQuery, you might check out the Java-Lover's group. Don't spam the entire group, but visit other group member's profiles, write on their wall, and invite them to join your group. If a related group is also active and you have good synergy, consider connecting with that group leader to brainstorm ways your groups might work together in the future.
*image via Crystl