Use easy-to-read font sizes
Not only is it user-friendly to use an easily readable font size on pages with lots of content, but it may also prevent your site from being ignored by search engines. Studies show that content-heavy pages that use small-font text are often not listed by search engines. To be safe, use a font size greater than 2 for the bulk of your body copy. Otherwise, all of your efforts to create rich web content to optimize you search engine ranking could be compromised.
[June 18, 2009]