Scottsdale, Arizona-based iCrossing and Texas-based social media firm Pluck said this morning that the two companies have linked on their digital marketing and search capabilities. The two said that iCrossing will work with Pluck and its social media platform, to help power digital media properties. Pluck provides tools for user comments, rating, reviews, photo and video sharing, blogs, and other social networking tools. Financial terms of the deal were not disclosed. iCrossing offers SEO, SEM, search strategy, and other digital marketing services to consumer websites. Pluck is a subsidiary of Demand Media.