Please keep things positive. Best advise I believe is to try out different sites. Find what works well for you. If you don't like it, don't go back and try another site. Nothing says you only have to play on 1 site. At one time, I played on about 6 different turn-based game sites.
Vikings: Where at? Facebook? MySpace? Tagged? Bebo? (I have played Mafia Wars on all 4 of those sites at one time, even though I don't play it much anymore.... very fun game, but started to take way too much of my time.)