Google street view now in Baltimore
Check it out, you can drag the little guy that's above the zoom bar onto a street a get a picture (like the link below) of that street that you can rotate and click to walk along a street so you can get a feel how bikeable that street is.
<a href="http://maps.google.com/?ie=UTF8&ll=39.337019,-76.634874&spn=0.016895,0.043945&z=15&layer=c&cbll=39.339487,-76.628569&panoid=xpWnNZ4-vH9qfEhYtIv2NA&cbp=12,92.936762231621,,0,15.89843749999998">http://maps.google.com/?ie=UTF8&ll=39.337019,-76.634874&spn=0.016895,0.043945&z=15&layer=c&cbll=39.339487,-76.628569&panoid=xpWnNZ4-vH9qfEhYtIv2NA&cbp=12,92.936762231621,,0,15.89843749999998</a>
Extra points to anyone who can find a bicyclist captured in a street view.