Social Media Marketing

What are laws/rules towards using the logo of a website(like myspace, facebook, etc) to promote your profile on you website. For example, I want to put their logo on my site to link to my profile on theirs. I know facebook has a badge but I'm having trouble finding ones for myspace, flickr, youtube, squidoo, […]

Y!A, myspace, Flickr, Facebook, tagged, linkedin, various forums Chatting included And why? I have heard of people spending 4 hours on flickr and some spending 8+ hours on facebook. Im not being critical im just curious.