Using bold, strong, or emphasis tags within the body copy of your blog posts will help identify to search engines like Yahoo! which words/phrases should be given more weight. This is a useful technique for blog optimization. Notice that I made the phrase “blog optimization” bold in the previous sentence. That’s an example of this tactic in practice. 😉
Feel free to emphasize multiple phrases in your copy. Even make use of Heading tags if your post is particularly long. Just don’t overdue it. If it seems overoptimized when you read it, then it is!
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A slight tangent, Stephan, but something I wonder about…
If you had written “blog optimisation” because that’s the way we spell it over the pond would a search engine shuffle that in with American spellings or do they treat UK and US spellings differently?