What does "beta" mean? beta \Be"ta\, n. [Gr. bh^ta.]: the second letter of the Greek alphabet, B, [beta]. See B, and cf. etymology of Alphabet (Webster's Revised Unabridged Dictionary) Borrowing from the classics, today's software engineers use the term "beta" to describe a second-generation product that has not been exhaustively tested. Beta products, such as this version of the AdRelevance Service, typically still have bugs and design flaws that may produce inaccurate results Thus, your feedback on problems or bugs you encounter while using the AdRelevance Service is very important to the ongoing development of the product. You may encounter beta-related problems in two areas: Functionality If you encounter a functionality error (e.g. missing links, computational errors, etc.), please report it to us immediately. We also welcome suggestions for improving or enhancing any part of the service. Functionality updates will be provided to all beta-testers via e-mail. Data The impressions and spending data available to you with this version of the service should be considered "beta data." It may be accurate directionally, but we strongly advise against making critical business decisions based on this beta data alone, without also conducting your own audits. But while the accuracy of this beta data is not exact, it is not useless by any means. By virtue of our methodology, we do not report things that didn't happen. For example, if we report that an advertiser placed an ad on a particular site, we are nearly 100 percent confident that that information is true and accurate. In fact, we will most likely under-report rather than over-report. Therefore, generating reports based on this beta data will still give you a pretty good picture of the competitive landscape, if not the exact height of every tree and every bush. The accuracy of impression and spending data will scale to reasonable reliability over the next few months, as we roll out different industry categories and calibrate our systems. We encourage you to audit our data against your own buys. Any discrepancies you find will undoubtedly clear up over the next few months. In addition, AdRelevance will make periodic data reliability announcements. Help Us Improve the AdRelevance Service We would also like to invite our Charter Beta Clients to participate in ongoing system calibration efforts by allowing us to compare your post-buy audits with AdRelevance data. This will be done on a strictly confidential basis, with discrepancies used only to modify probing strategies and statistical models. Under no circumstances will proprietary data be aggregated into AdRelevance data. If you are interested in helping us, please call our toll free number 1-877-884-5083 or email us at info@adrelevance.