Irvine, CA — (SBWIRE) — 06/07/2011 — Promofill, a promotional fulfillment service located in Southern California, is announcing their participation in the Internet Retailer Conference and Exhibition (IRCE) from June 14-17th in San Diego, Ca. Promofill is a fulfillment house that helps online retailers with the warehousing and shipping ends of their business. For companies …