What is a Splog?

I see the term splog, but don't know what it is. What is a splog?

Spam + Blog = splog

The term generally means a blog that contains useless content. More often than not the content is scraped from various websites or just clippings of phrases from a variety of blogs and pieced together. In most cases splogs do not make sense to an average reader, the sentences are often incomplete.

While it is easy for a human to discern unintelligible content it is difficult for search engines to discern the difference. Hence splogs are appearing in search engine listings and blog directories that are not manually approved.