Here are some SEO tactics that have worked and are working for me.

• Quality Content
• Keywords
• Onpage Factors
• Google will send you the most qualified traffic so concentrate the majority of your SEO efforts on Google. Don’t ignore Yahoo! or MSN but Google is king of search so give it the respect it deserves.
• Link Building is still the most effective way to boost your search rankings. Make sure you get backlinks from relevant sites related to your niche market and make sure the ‘anchor text’ is related to your keywords.
•  Article Marketing
• Onsite Traffic Hubs have worked extremely well for me. These traffic hubs are whole sections of your site devoted to one sub-division of your major theme.
• WordPress blog software is extremely effective for SEO purposes.
• Social Bookmark/Media Sites are becoming very important on the web.