Here is an article I just updated:
Virtual worlds: Where is everybody? How do I find people?
https://virtualoutworlding.blogspot.com ... re-is.html
Key info:
Entering a virtual world is a lot like moving into a new town.
Read the local news, find what is happening around you.
Join local groups that do things that interest you.
Make yourself visible to the local community
Go to events that interest you.
Pay attention to people's names. (You can see floating name tags.)
Find people in the region (Firestorm People Button) if you don't see them.
Post about your interests in group chat.
Watch group chat for things that interest you.
Watch chat at events and meetings.
Most people in virtual worlds want to talk to people with similar interests.
If you want friends, be very public about your interests.