Gerald: Lost credit card topamax causes kidney stones Pinterest, founded in 2010, was valued at $2.5 billion in February following a round of financing led by Valiant Capital Management, which also included Andreessen Horowitz, Bessemer Venture Partners and FirstMark Capital. If this promoted pins step is successful it could help the photo-sharing website generate revenue and prove that valuation. Yet Silbermann also recognized the need to please consumers while developing Pinterest's advertising system, so he promised in the blog post that the company would be "tasteful" by avoiding the use of banner ads or pop-up ads.