It seems Shelton is also working for Pixleworks /Todd Debonis! This is a good refference! (bolt text done by me)

“As our full-service partner for the past 4 years, Shelton Group has been instrumental in implementing Pixelworks’ investor relations program and raising the Company’s visibility. In addition to helping ensure that our communications efforts deliver a clear and compelling message, Shelton Group’s deep understanding of Wall Street and investor sentiment has been invaluable in the form of strategic council to our management team and board. Furthermore, they have facilitated a significant expansion in our sell-side analyst coverage, which is a notable accomplishment in the micro-cap space. The Shelton team’s responsiveness and attention to detail has made them a pleasure to work with over the last several years.”
Steven L. Moore – CFO, Pixelworks, Inc.

http://www.sheltongroup.com/expertise/references/