Blogging Regularly to Increase Visitors and Followers?

[Jake]

Google gives some ranking points to a blog that has regular updates, this may just be once or more a week rather than 5 times a year, they like to see currenr active blogs, pages can lose some ranking as they age. For the most part individual page are raked on their own, so doing a bunch of short, way under 450 word posts can be harmful. There may be a bit of overall site rank effect from quality posts, some say "a rising tide lifts all ships".
For the most part, a larger number of posts gives the opportunity to target more different keywords, you should have a target list of perhaps 50 or more phrases that you could feature in a post's meta title header and body text, where it naturally fits, search engines are more on the lookout for SEO spam, so always write enjoyable material for your readers as well. Some sites get the most search traffic from link tail keywords that might come up only once, a diversity of content improves the chances of getting these low volume searches.
She same general SEO technique should apply to any blog platform.

Here's a Search Engine Optimization guide by an SEO authority, too much of the stuff taught by others is out of date or simply inaccurate.
http://www.seomoz.org/beginners-guide-to-se