You've probably heard about the "long tail" in search engine marketing - the numerous, highly specific, less popular keyword phrases that are a great source of targeted, low cost, and high converting visitors. By examining your web analytics, you can discover and implement many of these very productive "long tail" keyword phrases used by your customers. Executing a "long tail" strategy is critical to campaign success, but don't let it distract you from the power of search's "short head" - that handful of keywords that drive most of your cost and conversions.