I am just gonna paste this article I came across on Mashable, called Two-Thirds of Marketers Now Use Social Media because it says it all:
Earlier this year, we reported that 63 percent of companies planned to increase their spending on social media
in 2009. Thus, it's not too surprising that a recent study
from the Association of National Advertisers reveal that 66 percent of marketers have now used social media in some capacity in 2009.
Also not surprising, the top platforms being utilized: Facebook
(60%). Combined, this usage represents significant growth from 2007, when the same survey indicated that just 20 percent of marketers were using social media.
Although social media marketing is clearly on the rise, it remains a relatively small part of most marketing budgets. ANA reports that the bulk of spending will still go to maintaining a company website, search marketing, and online display ads.
That said, social media (including blogs) remains the quickest growing marketing segment, and as we recently reported, it's expected to grow to a $3.1 billion industry
by 2014. In all, it looks like social media marketing still has a healthy amount of growth in front of it.
It really shows that even though some of this feel that social media marketing is getting mature, it still has some growth ahead of it.