BlogPulse is an automated trend discovery system for blogs. Blogs, a term that is short for weblogs, represent the fastest-growing medium of personal publishing and the newest method of individual expression and opinion on the Internet. BlogPulse applies machine-learning and natural-language processing techniques to discover trends in the highly dynamic world of blogs. BlogPulse is brought to you by Nielsen BuzzMetrics.

The BlogPulse search engine uses a simple interface that is similar to the interfaces used by most Web search engines, such as Google or Yahoo! Simply enter your search terms to locate blog entries containing those words. Click on Search Help if you want to know more about specific search features available on BlogPulse.

A BlogPulse Trend uses a simple trend graph to display the buzz generated by any given topic or the comparison of buzz across a set of topics. You can also create a trend graph from your BlogPulse search results by clicking on the "Trend This" icon that appears when your results are displayed.

BlogPulse Live provides a real-time view of the most popular topics that bloggers are writing about, updated by the minute and presented as a percentage of all blog posts. The numbers across the top represent Eastern Time. BlogPulse Live captures new blog entries as they're published.

We are constantly innovating and producing new and cool tools and technologies. The BlogPulse Showcase is a sandbox for our researchers, developers and collaborators. This is where we offer an early peek into new and cool things related to blogs, blog searching, blog analysis and more. Check here frequently for new toys and tools for your use. We actively collaborate with researchers and developers on a wide range of activities.

this time, we have some mechanisms in place to work with our collaborators. A formal API is forthcoming. Please write to us about your interest or need from a BlogPulse API.

BlogPulse™ Newswire is the general overview blog that takes a look every weekday at what's happening in the blogosphere and reports on major trends, shifts, events and personalities. It also provides information on service updates to BlogPulse, new features, new collaborations, BlogPulse news and other tidbits.

BlogPulse™ Spotlight is a specialty blog that focuses entirely on entertainment news: celebrities, movies, music, publishing, gossip and more.

BlogPulse Profiles is a tool we created to answer the very simple question: "Who are these bloggers, how prolific are they, and is anybody paying attention?" Each profile contains basic information about a specific blog: its title, its URL/link, its rank (based on citations by other bloggers), how frequently the blog author posts new information and other data points.

BlogPulse searches content posted on weblogs, or blogs. BlogPulse is NOT a general World Wide Web search engine. Users can search by link (URL), keyword, phrase, boolean query, and date range.

Please use our Submit blog form. Remember, BlogPulse is a blog-only search engine. Please don't spam it with URLs to general web sites or other resources. Spamming our blog submission process costs us a lot of time and resources, and prevents us from offering a high-quality, free service to the public.

There are two easy ways to create your own trend graphs. One way is to create a trend graph off of a regular search by clicking on the "Trend this search icon" on your search results page. Trend Search is also accessible in our BlogPulse Tools section. Trend search has proven to be one of BlogPulse's most popular features. We'd love to hear from you what you think! We are happy to hear that these BlogPulse Trend graphs can support a story or article or paper you may be authoring.

Like millions of bloggers out there, Nielsen BuzzMetrics has added blogs to the BlogPulse.com interface. We know that users love our buzz-tracking tools, but the blogs are a way for us to quickly summarize what's happening in the blogosphere for users who want a quick overview. Besides, if we're in the business of analyzing blogs, we figure we should walk the walk, right? The blogs keep you updated on recent trends, issues, events, personalities and hot topics among bloggers.

Today's Internet hosts millions of blogs. The actual number varies depending on the source or the research on which the estimate is based. As of July 2004, BlogPulse locates content from more than 14 million blogs and indexes them on a regular basis. BlogPulse updates its stats on the number of blogs right on the home page (top right corner).

this time, BlogPulse will visit your blog at most once a day. Check here (the BlogPulse FAQ’s) next time you visit BlogPulse for any opt-in indexing plans we might offer in the coming months that include more frequent updating.

BlogPulse creates a full-text search index of all of the blog entries it finds every day. You can search this index through the BlogPulse search engine. Additionally, BlogPulse analyzes the blog data in a number of interesting ways. These methods reveal the most cited links and key people that are referred to daily in blog entries. BlogPulse also performs a unique kind of text mining on blog data to help reveal topics and themes within blog entries every day.

You can also display your blog's rank information on your blog, but there is a small challenge with doing so at this time. Your blog's rank will fluctuate from day to day. We plan to add a small tool that you can use to place the most current rank (or other information from your Profile) directly onto your blog, without any heavy lifting on your end. If you have some thoughts or ideas about this kind of feature, please let us know.