The Patent Baristas have brought together a collection of links relevant to the patent thicket problem, plus some advice paraphrased from a Business Week blog: "with such a fragmented market, few investors are going to be able to understand the competitive landscape. Therefore, many investors might be tempted to believe a patent means more than it does, setting some investors up for a big loss. They point out that very often small cap, nano-companies can skyrocket or plummet on the mere mention of a new patent. Let's be careful out there." Indeed.