One of the most important thing to keep traffic coming from search engines is to update your blog regularly. (post twice a week at-least)
Blog Commenting is not overly effective. Generally content is a good way to build up your blog, but you shouldn't use your marketing time to work on content more. You can forum post, have a referral signature to get you paid, and post on certain forums as a paid poster getting paid for triple the money. Good reply though!
you can also do with smo - social media optimization, to drive traffic to your blog. nowadays most of the people live in sites like twitter and facebook,so its high time to utilize that .
Yes, You are absolutely right. These 5 ways described by Dennis is the great post to optimize our website and blogs to search engines. This helps to increase natural backlinks and traffics to the website which ultimately helps to increase the site`s page rank. Thank you sir for your great ideas. Anybody can learn more about blogging from my blog Money. Thank you.