LinkedIn is the world's premier social network for professionals. I'd imagine there's a lot of ways to make money off that besides their current scheme of basically charging recruiters a ton of money. Just to throw wild ideas out: build more tools for recruiters. Own the whole software stack that runs the recruiting pipeline (coincidentally, jobvite is a piece of shit.) Create classes and certification programs that help replace college degrees. Cross company calendaring integrated with my gcal and work calendar (eg I want to have drinks with friends, and I want all my calendars to sync. I don't want my work cal to necessarily say that I'm having drinks or with whom, but I want the time to be unavailable.) Steal the job search market from indeed and simply hired. Do meetups tailored to professional activities like user groups. Do message boards and mailing lists for professional groups that don't suck (unlike their current offering.)