Internet search engine Google has unveiled a website that enables users to search for web journals and blogs.

Based on the same technology that powers Google's web search, Blog Search is available at blogsearch.google.com and is also integrated with Blogger at www.blogger.com.

"Blogs are an important medium of self-expression, we are committed to providing the best tools to access this unique source of news, opinion, and commentary," the company said in a statement.

"The ability to search over blog content has been one of the most highly requested features from our users."

Users can customize their queries to restrict their search to blog names, authors, or to a specific date range.

Blog Search also features Google's SafeSearch technology, enabling users to manage the content of their search results.

Google said its tool would allow searches not just for blogs written in English but also in French, Italian, German, Spanish, Chinese, Korean, Japanese and Portuguese.