Ron:
The first $100 comes pretty easy. I had a lot of donations from friends and family for the ADA ride I have done. I also am active on a couple forums and put the link in my signatures and had a few good donations including one guy that committed $2 a mile (I did the Metric). I ended up raising $650. I captained the AT&T ADA team in 09 and as a team we raised $8,000+ There was $2000 donation after the event for the Pioneer group (retired group) so I dont recall the exact amount.. Its easer then you think, just have to ask. I printed a bunch of half pager flyers with the links on it to hand out.