Ste-B2B Agency Approved - So far Ste-B2B has ordered 4 GSA tools or apps. These include GSA SER; GSA Indexer; GSA Keyword Research, GSA Website Contact. We have plans to make additional GSA purchases. We were influenced to order from GSA as the following points are vital to any agency or website. One-time payments; Lifetime Updates; Unlimited URLs/Keywords/Projects.