Here is benefit of giving out testimonials to companies and people that you really dig.  You get free exposure when they use your testimonial.  Here is mine for TimeBridge which I use every week to schedule my phone appoitments.

Chris Sherrod: “Stop wasting time scheduling time! Use TimeBridge to schedule your next meeting. It’s fast and easy. So far I love the service and it is reducing time me or my assistant spend scheduling appointment times.” — Abundance Unlimited, November 9, 2008

TimeBridge Continues Fast Growth, Now Helping More Than 200,000 Busy Professionals and 12,000 Businesses Simplify Meeting Scheduling.