The hovercard idea is very nicely done. Just a tiny bit of copy-in Javascript, and instantly they hook into any @name on your pages. It's easy for a site to add

The hovercard idea is very nicely done. Just a tiny bit of copy-in Javascript, and instantly they hook into any @name on your pages. It's easy for a site to add, looks good and makes the connection between Twitter and the @name look even stronger.