Google announced a deal to buy business analytics software vendor Looker for $2.6 billion. The acquisition will extend the capabilities of Google’s existing cloud database products by letting users create shared business metrics and develop applications. Looker will continue to run on all cloud database platforms.

Nothing is murkier than influencer marketing. Klear, an influencer marketing platform, says it can fix this with a newly-announced feature to estimate campaign ROI by calculating Earned Media Value – that is, the how much it would cost to buy the same amount of coverage in paid media (a.k.a. advertising). Not everyone agrees that EMV is a valid approach.

The web search tool Perplexity looks like it’s taking on Google with its latest release, a web browser named Comet. Comet claims to move “from browsing to thinking,” surfacing information and search results in response to natural language queries. Comet is available immediately to Perplexity Max subscribers; others can join a wait list.