On the smartphone front in the three months ended April 2013, Apple and Samsung were the only manufacturers to see an increase in market share.
A new product from ComScore takes into account both mobile and desktop when sizing a site's total Web audience. That would help some companies, like Facebook and Yahoo, but would hurt others, like Microsoft, which would fall to fourth place from its prior No. 2 slot.
February's numbers also show that Groupon, Zynga, and Pandora had the greatest percentage gains in mobile out of the top 50 companies.
Feature phone owners are upgrading more to smartphones -- and mostly those running on Android -- according to a new report.
As it is being scrutinized in the markets, Facebook publishes a second white paper on the subject saying brand awareness is alive and well on its network.
Nearly one in four smartphone owners also make use of tablet computers, according to data from the market researcher.
ComScore's stats for February show that Pinterest really is on fire, with a 52 percent increase in unique visitors over a single month.
Market researcher reports that sales at the start of the holiday shopping season are up over last year, and that pace will likely continue through the end of the year.
Both companies see their respective shares of the U.S. search engine market eek up last month.
The launch of the iPhone on Verizon earlier this year made it one of the top sellers, according to data firm ComScore. But Google's Android pulled in huge gains too.