Tom Johnson's List: Investigative reporting

FBI Central Records System Classifications

The first three numbers of any FBI file designation indicate the kind of offense the FBI was investigating when it opened the file. For example, a file number that begins “025” would be classification 25, or an investigation into draft evasion or violation of the Selective Service Act.

"WHOIS

Finds the registered users of a domain name and details the date of registration, location and contact details of the registrant or assignee.
• Spokeo

A people search engine that can find individuals by name, email, phone or username. Results are merged into a profile showing gender and age, contact details, occupation, education, marital status, family background, economic profile and photos.
• Hoverme

This plug-in for Google Chrome reveals social media users’ profiles on other networks from the Facebook news feed.
• Identify

Similarly, this Firefox plug-in creates a profile of individuals’ social media identities from any page.
• Rapportive

This Gmail plug-in gives users a profile on their contacts, including social media accounts, location, employment.
• Klout

Measures individuals’ influence across their social media network, expressed as a Klout Score, by looking at variables such as follower numbers, re-tweets, the influence of those re-tweeting, mentions, comments, likes and number of friends."