Join someones mafia in Mafia Wars

Yes, you should join because more mafia members can give your more energy packs/boosts, gifts, and you get extra power when attacking someone else. You can add a lot of more people at the Mafia Wars Forum for Myspace/Facebook. Just go to the regular Mafia Wars page and in the top right corner, there is a link or thing saying about the Forums, click on there, sign up and you can get more mafia members.