If you have an interest -family/health/hobby/work that you enjoy talking about to 'real' friends then you can search for groups under that title.
For example - if you enjoy using and working with computers then type in
computer forum in the search box and you will get several links to try out .Most allow you to view before you join - and joining is very simple -and it only takes a little while before you are accepted into the community .
Dont forget your 'netiquette' though ,good manners are expected in all forums (or is it fora?)