Basically, I have been a fan of Verdana on the web. I like sans serif fonts over serif any day if i have to read a lot of text on the screen. Verdana is simple and very easy to read. I am also a fan of whatever this font is that is being used right now. I'm not sure which one it is, but I like it. It is a more interesting sans serif font that gives the feeling of serifs, such as how the lower case 'L' curves at the bottom. The lower case 'g' is my favorite.