As the RIA industry grows and reshapes itself, advisors need to keep an eye on the shifting competitive landscape. In our annual RIA Leaders report, in addition to identifying the top 50 firms by AUM and by growth, Financial Planning ran the numbers to find 50 emerging fee-only RIA firms to watch. Firms were ranked by AUM growth since 2006. All have less than $500 million in AUM yet are growing rapidly. Click through to see the full list.