Have you experimented with your new Twitter profile yet? The company rolled out a set of design updates Tuesday — most specifically, a brand new header image. Users can upload a long horizontal image — or “header” — that resembles the cover photo concept currently used on Facebook and Google+. Only, existing profile avatars are embedded in the center of the header. The header might be similar to other social networks’ concepts, but there are a few things to consider before redesigning your profile. Here are a few tips. Read the full story at Mashable.