Fran Gatti had a good post and an even better picture on the perils of ignoring the Internet for generating sales and clients:
Fact: Over 60% of home buyers and owners go to the Internet FIRST for real estate and mortgage information. Therefore, regardless of how great your client loyalty program or referral network is there is a 60%+ chance they have already been to the Internet and your competition is calling them
Fact: Some very large (the number is always contentious–somewhere between 40% and 65%) percent on Internet inquiries never get called back and an even bigger percent never get a second attempt.
Are you still ignoring? Then strap on your crash helmet!