Send a handwritten thank-you note. (sound famililar?) Send a thank-you gift. Produce an email newsletter. Call clients for “thinking of you” check-ins. Send holiday cards. Send the best clients holiday gifts. Give referrals of their products and services often. And work the hell out of search engine optimization (my words).
Read the rest of what Heidi has to say, as well as several other great posts at her site, Talk it UP! 8 Tips for Relationship Building – [Talk it Up!]