Twitter has developed a button that Web publishers can integrate into their sites to let visitors easily subscribe to Twitter accounts, the company said.
Google is rolling out an interface module for Gmail that displays contextual information about people involved in a message's thread.
Google's eBooks electronic bookstore now contains about 3 million free titles, up from 2 million when it was launched in December.
Google has upgraded the mobile site for Maps, which is one of the company's most popular online services, adding features found on the version for desktop browsers.
To help its hundreds of millions of users prevent unauthorized access to their accounts, Facebook has added an optional verification step to its log-in process.
Google gave Android developers several reasons to cheer on Tuesday with its announcement of new versions of the operating system, as well as the addition of music and movies to the Android Market.
YouTube is now officially expanding into streaming full-length movies online for rent.
Google's Map Maker, an online application that lets people annotate and add cartographic drawings to Google Maps, is finally available for the U.S.
Microsoft has upgraded and renamed its Bing search engine's directory of local businesses, adding capabilities for owners to create, claim and manage their listings.
Google's latest attempt to infuse its search engine with social networking elements appears underwhelming and its success is questionable, industry analysts say.
Privacy advocates cheered on Wednesday in response to the Federal Trade Commission's crackdown on Google over privacy violations resulting from the bungled launch of the Buzz social networking and microblogging service.
Google's cloud-hosted search application for e-commerce sites has been upgraded with on-the-fly results that drop down from the query box as shoppers type their search terms.
The game of musical chairs continues at Twitter, where co-founder and former CEO Evan Williams will step down as product development leader. Jack Dorsey, another co-founder who had distanced himself from Twitter's daily operations, will take over in the product development role.
The social networking service has begun rolling out a new feature in which users can post questions that their friends can answer.
A proposed agreement drafted by Google, authors and publishers to settle a long-running copyright dispute has been rejected by a U.S. judge, dealing a major setback to Google's plans to build a massive marketplace and library for digital books.