There's been a lot of talk lately about the growing world of Podcasts, Blogs, & RSS Feeds.  Now, PQ Media track's the growth of these market segments and their growing importance as a part of the modern advertising matrix. 

From PQ Media:

The culmination of six months of primary research, this report found that blog, podcast and RSS advertising are the fastest growing segments of the alternative media industry. These segments, known as user-generated online media, expanded at an aggregate 198.4% to $20.4 million in 2005, and are expected to grow another 144.9% to $49.8 million in 2006.

• Blog advertising accounted for 81.4%, or $16.6 million, of total spending on blog, podcast and RSS advertising in 2005, but will comprise only 39.7% of the total in 2010
• Podcast advertising, meanwhile, reached $3.1 million in 2005, and is projected to grow at a compound annual rate of 154.4% from 2006 to 2010, when it will be larger than blog advertising
• RSS advertising, non-existent until mid-2005, generated spending of $650,000 in 2005, but will be the fastest growing segment over the next five years

A free download is available from PQ's site that includes the executive summary and index of the report, which is also available for purchase.