Playing fantasy football for the first time...?

Yeah, you normally just play with other random people, but its still fun. I'd recommend Yahoo, but I've never tried anything else. Since you are already a Yahoo member it would be really easy to join. Just go to the fantasy football page and press join league. You can just join a public league if you want but that only has yahoo default league settings. I'd recommend browsing through the custom leagues and finding and picking out a league that fits you. You should probably do a league thats relatively simple since its your first year, so try to look for a league with not too many players and no defensive players, just defensive teams. Hope this helps!