PUBLIC MARKS with tags tracking & twitter

Query by email address, Twitter username, Facebook ID or phone number. FullContact’s Person API finds publicly-available social profiles, profile photos, basic demographics and social influence.

But while social media revolutionizes how the world responds to political and social events, it may be a double-edged sword. Researchers warned that the tendency to fixate on a small number of opinions encourages the proliferation of rumors, misinformation, and political polarization.

The company previously allowed third-party firms such as Gnip, Datasift and Dataminr to buy access to the tweets and then re-sell that data to corporate clients.

Twitter Shows The Way Forward With Do Not Track Twitter today announced a new way of targeting advertisements for its users, including a partnership with three online tracking firms: media6degrees (m6d), Chango, and Adara. This new system will display ads based on your behavior and reading habits, which show up as "Promoted Tweets" or "Promoted Accounts." This is typical of the direction that major online companies are moving. But Twitter has made some praiseworthy design decisions:

In matters of Do Not Track, Twitter is doing things very, very right. The company unveiled yesterday its new ad retargeting effort, which lets it display advertisements to users based on their browsing activity. Basically, if you search for something like jeans online, you’re going to start a lot more advertisements for jeans in your Twitter feed. As Twitter argues, it’s all about seeing better, more relevant ads (and making more money from advertisers).

Twitt(url)y is a service for tracking what URLs people are talking about as they talk about them on Twitter.

Enter the URL you'd like to shorten, tweet and track

we round up 12 services that want to track your every move - voluntarily. of interest to twitterers.