assistant to get it to work well on mobile," he said, referring to the technology available on Apple Inc's iPhone.
Facebook executives at the event showcased a variety of different potential uses of the product, such as finding a date by searching for single men who live in San Francisco and are from India, and creating a holiday card by finding all the photos in which spouses appear together.
The search technology will use the "likes," "check-ins" and star-ratings that Facebook users have posted about restaurants to determine the order of the recommendations displayed, though Facebook search engineering head Lars Rasmussen noted that users' comments about restaurants don't currently affect search result rankings.
Zuckerberg said the search tool was a work in progress that would take the company years to fully build out. He pointed to a variety of additional features on the horizon, such as support for additional languages and the ability to incorporate data from third-party services, like online music services, which connect to Facebook.
"I don't necessarily think that a lot of people are going to start coming to Facebook to do Web search because of this, that isn't the intent," said Zuckerberg. "But in the event that you can't find what you're looking for, it's really nice to have."