Here are some resources to help you understand how to maximise the benefit you get from search engines and how to register with them. It's worth putting in a few hours effort to (i) learn how and (ii) implement your registration with search engines. That way you pick up visitors searching for a local group for them to join:
Search Engine Tutorial for Web Designers:
http://www.northernwebs.com/set/index.html
Search Engine Marketing Information:
http://www.promotionbase.com/subcats/38
Internet Marketing Brain:
http://internetmarketingbrain.co.uk/
Search Engine Checker (check how well you have been registered):
http://www.hostpulse.com/app/networktools/...archlisting.asp
Search Rank Watch (another search engine checker):
http://www.echoecho.com/position.htm
Feel free to post more search engine related / web site promotion resources here.
Rgds
Kenny