29、博客搜索

1、Bloghunt
https://bloghunt.me
2、BlogSeacrhEngine
http://www.blogsearchengine.org
3、NetworkedBlogs
http://www.networkedblogs.com
4、Notey
https://www.notey.com
5、Twingly
http://www.twingly.com
6、Webhose.io
https://webhose.io

30、论坛和讨论区搜索

1、BoardReader
http://boardreader.com
2、Delphi Forums
http://www.delphiforums.com
3、Facebook Groups
https://www.facebook.com
4、Foren User
http://www.forenuser.de
5、Google Groups
https://groups.google.com
6、Hoood.de
http://www.hoood.de
7、Linkedin Groups
http://www.linkedin.com
8、Ning
http://www.ning.com
9、Xing Groups
https://www.xing.com/communities
10、Webhose.io
https://webhose.io
11、Yahoo Groups
https://groups.yahoo.com

31、问答网站

1、Answers.com
http://www.answers.com
2、Ask
http://www.ask.com
3、Ask.fm
https://ask.fm
4、eHow
http://www.ehow.com
5、gutefrage
https://www.gutefrage.net
6、Quora
http://www.quora.com
7、StackExchange
http://stackexchange.com
8、Yahoo Answers
http://answers.yahoo.com
31、问答网站