Is there a list of which team rides which machines on any or all stages?

go here http://www.letour.com/2008/TDF/LIVE/us/equipes_presentation.html
and click the details link brings up a pdf and that has an equipment section

go to cyclingnews.com and check the 2008 Teams Database on the left-side of the homepage.

Here's a look at the Bikes of the Tour
http://www.bicycling.com/tourdefrance/tourbikes/1.html

I noticed it seemed like a lot of the bikes in the Tour have white handlebar tape. From these photos I count 12 of 17 are white. Is there a reason? Is it simply that white is a common trim color in many color schemes?

Here's a look at the Bikes of the Tour
http://www.bicycling.com/tourdefrance/tourbikes/1.html

I noticed it seemed like a lot of the bikes in the Tour have white handlebar tape. From these photos I count 12 of 17 are white. Is there a reason? Is it simply that white is a common trim color in many color schemes?

Riders like white and it looks great when new.