How to best use/navigate Yahoo groups

[[email protected]]

Any tips?
Is it best to follow group posts threw email or reading the threads on the group page?
Whats the best message delivery setting, individual mail or daily digest?
Whats the best line height, slim or relaxed?
Isn't searching for topics or keywords a problem/pain in the butt, in yahoo groups?
Any other tips, links, or videos tutorials that might help me with this subject?
Thanks a lot.
-steve