In the comments of a thread at Baseball Think Factory, Sean Forman has provided a link to a redesigned Baseball-Reference.com.

Since you were all so nice to offer me birthday wishes, I'll post the link to where we are testing out the redesign. THIS IS NOWHERE NEAR COMPLETED AND IS NOT UPDATED IN A MEANINGFUL WAY AND MANY MANY THINGS ARE BROKEN OR NOT COMPLETED, but anyways. ETA is spring training 2009.

It seems more user-friendly than the current B-R, and while it doesn't look like there's a beta version of the home page, It looks like things are going to be a little easier to find.

There's also some new information, including BABIP, K%, BB%, LD%, leverage numbers and a wealth of other cool stuff.

As an example, here's Pedro Martinez's page.

And yes, every player has Vlad Guerrero as his mugshot in this working version.