If you’re using Twitter in conjunction with your other social media marketing plans for your affiliate site, don’t forget the important aspect of the design of your Twitter Profile page.
TheNextWeb has a nice practical guide for points to consider when doing so (it’s aimed at brand marketing folks, but still applicable for performance marketers)…
Tips for Twitter Brand Pages: “The header image can be used to direct the user’s attention to a specific item on the page, as was the case in HP’s example, or it can be used to promote an engaging marketing plan, as Staples did, with a competition. Using the header image as nothing more than a banner advert, as both McDonald’s and Coca-Cola did, wound up getting the least attention from viewers.”
Word of caution here… unlike Facebook Fan Pages or even Google+ pages, Twitter Profile pages area mixed bag. Yes, they are somewhat customizable and the new embedded media feature helps the look/feel. However, up to 1/2 (depending on whose numbers you trust) of Twitter users access the service via mobile or apps. I’d venture to posit (strongly) that most “power” users that are desirable for many niches are these types of app users (I rarey go to the main Twitter page and most of my network is similar).
So, design and test but don’t fret if you don’t see the type of interaction you do with a Facebook Fan page etc. Twitter, unlike Facebook, has lots of meaning in the message.