WALL STREET JOURNAL - May 14 - Platforms for networking, blogging and more do double duty as matchmakers. Musician Jacoby Jennings doesn't like online dating sites. Yet he found love through the music-streaming service Spotify. Now Facebook is officially getting into the act. Social-media sites are getting better at connecting strangers through mutual interests and friends, says Brooklyn Sherman, who founded a blog and Instagram account called "The Way We Met."