Well #newtwitter has arrived and although it has some great features, many are expressing unhappiness with the lack of area for backgounds (marketing space). Wheras before we all had more than an inch on either side of the Twitter stream to list contact information, company testimonials and more, on some computers that space has been reduced to about a half an inch or slightly more.
Here are screenshots of the old vs new Twitter:
Although there is less marketing area now, I encourage you to adapt your background for the New Ways. It is but one example of the constantly-changing scene of social media and how adaptable we must all be.
Need some help with it? Here is a Mashable article that will help you learn how to adjust your background.