Google vs Yahoo Groups

I have used Yahoo groups to stay connected to my math cohort from my education grad school program. We are only a group of 8, but it is a way for us to stay connected. We had originally intended to use it as a place to share lesson plans, but so far that has not materialized for the group at large (although 3 of us do share material). We use it to mostly send out emails about updates in our lives. Based on my superficial comparison of Google and Yahoo, I feel that Yahoo groups is easier to use and more organized. Google kept booting me out and the only advantage I see to it is the ability to set up an individual page otherwise I found navigating it confusing.