SEO - blogging

Techniques for SEO apply as much to blogs as they do to websites, but depending on your front-end editor, some techniques such as tagging are a bit tricky as you generally have to be able to edit the HTML if you use a service such as blogger.com.
The other side of SEO in relation to blogging, is that you can use a blog to promote your own website and get some reciprocal linking going. The theory is that regularly updated blogs are 'attractive' to the google search engine and may be in a better position to gain page ranking points than a website.
There is a vast blogging community and it is much much easier to get people to link to your blog than it is to get them to link to a commercial website. I am using two blogs - check the link to my 'other blog', and I am going to post another couple of links that you may find useful:
Ourblogreview.com - exchange links and submit your blog to be reviewed
Make Money with Ja Kel Daily - read the posts, exchange reviews, build your site traffic...