In order to remain in their audience's good graces, bloggers need great posts -
and that means they need great ideas. 

Sometimes ideas for content come to you and it feels as though you can't write enough.
Other days, you have to force yourself to find meaningful content. After you've built an
audience, the responsibility becomes even heavier - you've created expectations that
must be fulfilled.

According to SEOmoz.org, the following web tools have helped  get the juices flowing:

Technorati
Among all the tools listed here, Technorati is possibly the best for researching the most current topics or thoughts on the web. Their rankings of blog posts by date means that even a basic search for SEO or AdSense or NFL will bring up highly relevant, timely posts.

Del.icio.us
Del.icio.us' popular page has become so well read that it's no longer a great source for unique topics. The specific tag pages, however, function much like Technorati, in that they provide timely links to pages that people have bookmarked.

StumbleUpon
The best way to use StumbleUpon is to follow their Buzz page and use the "tag" option in the toolbar. Stumblers often have a preference for humor and the absurd, but nothing says that can't make for good blog inspiration.

Google / Yahoo! News
The news services from Google & Yahoo! provide access to tens of thousands of press releases and news articles every day. Search is the best way to go, although I've also been known to use the tech tab at Yahoo! and Google's Sci/Tech section, too.

Wikipedia
The obvious choice here is to look only at the articles, but I find that many times the discussion can be equally interesting. The search function is the best way to go, as the categorization structure isn't very user-friendly, yet.

Digg & Reddit
Both sites take user submissions and user votes, and both are best referenced using a search. You can sort by category at Digg (i.e. tech industry news or business & finance) and use several subreddits (though these are not great). The better option is to search.

Yahoo! Answers
Like Google Groups, but with a better interface, and oftentimes more mainstream questions, Yahoo! Answers is a feedbag for the content-hungry blogger. I like using the Internet category as well as searching (i.e. SEO, Google ranking, etc.)