Verdana is great for alphanumeric characters, and a little enhancement of the scope characters/operators makes it perfect for programming: http://i.imgur.com/KCKtUR1.png
What legality concerns?
Why would tens of thousands of sites from google be of interest?
And of coure microsoft has the font. It's their font afterall.
"Verdana is a humanist sans-serif typeface designed by Matthew Carter for Microsoft Corporation" [Wikipedia]