Xrefer (commercial) — Fee based database of 236 titles and over 2.9 million entries.Lexis Nexis (commercial) — Billed as the world’s largest collection of public records, unpublished opinions, legal, news, and business information.Each of the sections has numerous options to click through. Social Mention Real-time social media search and analysis This site allows users to input a person’s Facebook user profile URL and comment anonymously.Visit the site to see if someone has commented about you.
I’ve not been able to justify subscribing, so I don’t know.
Smithsonian Institution Libraries — 20 libraries from museum complexes around the world.
The National Archives — National Archives’ research tools and online databases. Internet Public Library — Internet’s public library. San Francisco Public Library – A great online library.
It has a handy interface allowing you to click through the tabs to get more targeted results: social media, microblogging, networks, images, etc.
You can also subscribe to any search by RSS to track any changes 17. It is divided into sections that includes blogs, news, networks, videos, images, and forums.