Things are about to get testy between the Snapchat ghost and Twitter's birdie as the popular Internet companies invade each other's space: Twitter has launched a private group messaging feature, while Snapchat added news content.

The next time you are too busy to access your Twitter feed or have a bad Internet connection, the social network will help you get updated with a quick recap of the key tweets you have missed.

So far, Twitter's advertising team has concentrated on sponsored tweets and variants thereof that appear on Twitter.com and the company's mobile apps. But as the Wall Street Journal reports, Twitter is looking at a new place to put its ads: other websites.

Twitter discussed its plans for more advanced video editing and publishing tools in November, and thanks to a TechCrunch report, we're getting a better idea of what that video feature may entail.

Photo-sharing site Instagram said Wednesday that its active monthly user base reached 300 million, a dramatic 50% increase in the past nine months.

In 2014, people around the world were celebrating, mourning, protesting and connecting. And thanks to the approximately 500 million tweets being posted every day this year, they were largely doing it on Twitter.

Twitter, hungry for new data to fuel its targeted advertising, will start looking at what other apps its users have downloaded.

If ads on Twitter weren't annoying enough, some will start asking for your credit card info, in the hopes you'll load up on store discounts.

Marketing is sometimes considered a niche form of storytelling, but its stories mean nothing if they don't make brands resonate with potential customers and ultimately lead to sales. Many modern marketers view the people who connect with their brands on social media as potential leads that could become customers.

Amazon has ranked number one in a list of the top 50 global brands with the most social influence and engagement.

IBM and Twitter have announced a partnership that will merge Twitter's massive flows of social media data with Big Blue's analytics software, including Watson.

Twitter is adding "dockable" music players to its stream of messages, photos and videos with a new feature called Audio Cards.

Social media is an opportunity unfulfilled in Hollywood. It bears surprisingly little to no impact on the success of films and TV shows, according to a group of seven film studio executives speaking here at The Grill.

Teenage users have been drifting away from Facebook for the last few years, but now it seems they're in a mad rush to get off the world's largest social network.

Apple CEO Tim Cook unequivocally tells PBS' Charlie Rose that the company has no plans to be in the social media business. "We have no plans to be in the social networking area," he tells Rose without hesitation.

Twitter is testing a way for its users to purchase digital music and other products through the social networking application, with the goal of making mobile shopping easier, the company said in a blog post.

This week Twitter began letting anyone use its Analytics service.

For digital marketers, the road to riches on mobile screens has been long and riddled with holes of divergence. But the pursuit, which harkens back to the pre-smartphone era, has gotten more promising thanks to social media.

Twitter is moving away from its cost-per-engagement model for ads and putting objectives like app installs, follows and leads front and center. Campaigns on Twitter will now begin with the end goal in mind, enabling advertisers to only pay for specific actions they deem most effective in achieving that objective.

A new infographic from the team at Who is Hosting This has endeavoured to look at which brands are leading the social media strategy charge when it comes to marketing and customer engagement on Twitter.

Billions of people use assorted social networking sites, but just how happy are they with the likes of Facebook, Twitter, and the rest? The American Customer Satisfaction Index (ACSI) strives to find out.