New service Twitter Poster from Spanish company Come and Click Networks provides a mashup of Twitter profile pictures that are sized relative to the influence of each Twitter user, based on the number of followers and the number of Tweets popular users make.

Influence posters are available for the United States, Japan, Brazil, United Kingdom, Spain, Germany, Australia, Italy, Mexico, Canada, France and Taiwan, in addition to a global poster on the front page.

It’s a pretty mashup, but the usefulness of it isn’t clear. I’ve already seen folks on Twitter talking about why some people have bigger profile pictures than others, and how they can change this, so it might have the potential of becoming a Technorati-style top list for Twitter users, but aside from this its just nice eye candy.

(thanks to Dave The Rooster for the tip)