Blogs and podcasts (and likely soon video blogs) are being used by an increasing number of venture capitalists as their mouthpiece to their constituencies. Brad Feld is certainly one of the pioneers and he has begun to organize a blog network of venture capitalists via Feedburner.
One incredibly useful form of post is under the theme of best practices. Brad Feld has his Term Sheet Series of posts and now Pascal Levensohn and his partners at Levensohn Venture Partners has begun a series entitled VC Inside Out. I'm sure there are other examples as well, but the point is that the amount of sharing of insight and perspective gained from experience is unprecedented.
Thanks for all who believe sharing is better than hoarding knowledge.