Which 2011 acquisition is listed as becoming LinkedIn Search?

The 2011 LinkedIn acquisition listed as becoming LinkedIn Search was IndexTank.

LinkedIn acquired IndexTank, a hosted real-time search startup, in October 2011. The company’s technology was integrated into LinkedIn Search, helping power search across the professional network. IndexTank’s focus on scalable search infrastructure made it a natural fit for a service whose members needed to find people, companies, jobs, and other professional information.

The acquisition took place several months after LinkedIn’s initial public offering in May 2011. It was also one of several deals that expanded the technical foundations behind LinkedIn rather than adding a consumer-facing brand. LinkedIn acquired Connected around the same period, but Connected was a social customer-relationship-management service, not the acquisition associated with LinkedIn Search.

Other choices can sound plausible because LinkedIn’s acquisition history includes products such as Pulse and PointDrive. Pulse became part of LinkedIn’s publishing and news experience, while PointDrive helped salespeople share visual content with prospects. IndexTank is the specific match for the search function.