http://www.hubspot.com released their predictions for developments in online marketing in 2009 and 2010 - See Article.

Here are a few of my thoughts on this list:

Business Blogs - I agree that more and more will be converted to the need to have a business blog. Will the blog be as important as the website? Maybe not yet, but we are certainly headed that direction.

SEO Business Consultants - Their market will get more competitive and the slowing economy will put more pressure on them to be able to validate the ROI they offer.  Marketing Software will become as critical as Accounting Software - this is a very bold statement, but I see where it is going. An accounting department would be lost without a good software program to enter their information and then produce reports about the results the business is generating.  Effective marketers need to be able to produce similar reports and information and track their progress.