Two small but notable tech acquisitions took place Monday as bigger players branched out into niche interests.
Apple acquired social media search and analytics start-up Topsy, an unusual purchase for a hardware-focused company that has made few forays into social networking.
"Apple buys smaller technology companies from time to time, and we generally do not discuss our purpose or plans," an Apple spokeswoman said.
The Wall Street Journal, which reported the news earlier, cited people familiar with the deal as saying Apple forked over more than $200 million for the business.
Topsy could help Apple sell targeted advertising on iTunes radio, but it's still unclear how the company intends to use Topsy.