UPDATE 2016-03-03! This post is nearly 8 years old and batchgeocode.com is all grown up and now just batchgeo.com with professional level service and pricing. Still a great option if you need geocoding but not all options remain free.
How To Video shows how you can put data points on Google Maps for free (you really should make a donation to the gang at batchgeocode.com, though).
Enjoy…
Rosemarie McKeon says
September 7, 2010 at 6:00 pmThank you for the work. I noticed the website has changed to http://batchgeo.com when i type in the address you mentioned.