Undercover Blog Tools
Zemanta automatically suggests content (including links, pics, articles, etc.) for your blogposts WHILE YOU ARE WRITING THEM. That’s write, while you write it automatically scanns the web for other resources that are relevant to your post and suggests them to add them. This is available for wordpress and many other blogging platforms.
skribit engages your readers by allowing them to make suggestions on what they want to read more about.
Blogged is a huge directory of blogs where you can get inspiration from other blogs. It’s a pretty neat directory of blogs and it’s easy to find something that is very precise in terms of what you are looking for. FIND BLOGS BY CATEGORY. Great for link building, inspiration - and you can also add yourself to it.
http://bloggrz.com/
Blogsigs AUTOMATICALLY inserts latest blog posts in your email signatures. (You don’t think email signatures work? Think again: internet giant hotmail.com built it’s entire business on the concept of adding a small link in email signatures).
LouderVoice.com is a great site for writing reviews.
Twiigs allows you to create surveys for free! But that’s not why you care. This is a great research resource for getting your pulse on the market. Because since this is user generated content, this is where you can find what people care about - and then you can write about these hot topics!