Forum Moderators: Robert Charlton & goodroi
On an inner page, would you bold the keyword that it is targeting or also other keywords that your site is about?
Look at the text formatting of this current thread on WebmasterWorld. Aside from the heading and links up at the top... within the main copy, our usernames are bold; the post time and date are bold.
Below the thread, text that introduces sections of functionality is bold... eg, "Message Thread Options," "Global Options," "Read Messages," "This Forum," "Global...." And then the nav links down at the bottom are bold.
What's bold and what's not bold on this page are all purely graphic choices, to help guide the user... in this case, to separate and identify sections on the page. On other pages, bolding might be done for other reasons.
These choice were clearly not made for search engine targeting or optimization.
But the secret number really is that each keyword should be bolded 2.3 times. ;)
[edited by: Robert_Charlton at 2:21 am (utc) on Oct. 30, 2008]
OP - work on your links, not your keyword density or your underlining or your bolding.
Be natural. Excess of any kind, including something as "innocuous" as bolding, is asking for a penalty.
That said, don't assume that something like bolding will improve ranking. If you do it for optimization, it's much more likely to get you a penalty than a SERP benefit.
That goes for most other on-page "optimization" tricks, too. Focus on titles and content; forget about optimizing most other stuff (tags, bold, italics, etc.).
p/g