I am so sorry for this late response, hehe... I've been so busy I can't get to reading all the posts like I should. And I haven't fleshed out any "rules" yet.
Yes, you can put your website URL in your signature. You can use a business photo for your avatar if you like. As for banners I'll be adding Banner Software in the future so we will have to wait on that.
Angela
Mama to Satori (11/04)