Defining cheating
You should take a look at this for what exactly is allowed and not allowed during games:
http://support.chess.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=17&nav=0,6
I agree about being surprised how many people are not cheating. Chess.com is the first online chess I've played as I've been really warned against online players cheating. It's nice to find an online community with an ethical majority.
Nothing wrong with the analysis board, I'll often even use a physical board to examine a position. As long as you are not getting external help it's ok.
I've got a question.
Is there a topic or some other kind of file that provides informations about what exactly is regarded as cheating, what is considered allowed rather than forbidden or even simply inappropriate or unfair (during a game and not only)?
For example, off course I know I can't use any kind of software to get hints or suggestions for my moves, that I'm not allowed to have multiple accounts etc; but what about consulting opening books or internet databases during a game, or generally getting aids from external sources other than the analisys board?