6 Whistleblowing Sites Like WikiLeaks

Blogs

8 Reverse Phone Sites Like Spy Dialer

Home & Garden

7 Online Quiz Sites Like Sporcle

Research & Knowledge

6 Book Recommendation Sites Like GoodReads

Magazines

7 Ask and Answer Sites Like Ask FM

Blogs

5 Internet Archive Sites Like Wayback Machine

Research & Knowledge

8 Background Check Sites Like Been Verified

Research & Knowledge

7 Online Bookstore Sites Like Book Depository

Research & Knowledge

5 Homework Helping Sites Like Slader

Research & Knowledge

6 Online Learning Sites Like Khan Academy

Research & Knowledge

5 Product Review Sites Like Consumer Reports

Research & Knowledge

8 Q&A Sites Like Yahoo Answers

Research & Knowledge