The document summarizes LinkedIn's Q1 2015 results. It discusses key metrics such as declining membership and engagement. It also reports on revenue, adjusted EBITDA, and guidance. Revenue declined year-over-year for Q1 2015. Adjusted EBITDA also declined significantly year-over-year. For Q2 2015, LinkedIn expects revenue of $670-675 million and adjusted EBITDA of around $120 million.