There's lots of good guides on the forum and the wiki but they all require a little digging to find. It'd be nice if there was a link on the c-rpg.net login page that directed people to to the main page of the wiki instead of just the section on installation. All the answers to the most frequently asked questions you see people asking in game are there, but there's nothing advertising it on the login page.
I haven't added anything to the wiki myself (lazy) but it might help to have a section for Strategus or even a separate wiki. In the general discussion section there's a FAQ, Strategus for dummies and changelog to wade through but it might help to condense all that info.
Recently I saw a new player who just bought warband and went right into cRPG almost get poll banned because he didn't know there were rules against teamwounding. When you log into the NA server there isn't anything explaining the rules on the message that pops up, so it might be good to add info about tking, teamwounding and ladder restrictions on there too.
It might also help to have some really short and concise visual tutorials, like a quick start guide slideshow that can be clicked through showing how to buy and equip equipment or how to create a skip the fun character. I'm working on one right now that shows a step by step on how to craft and sell goods in Strategus.