To all intents and purposes they are the same and interchangeable. I doubt it matters really in terms of seo; any ranking factor that applies to bold would also apply to strong.
Interesting... I thought like gazraz that they were identical. Any references for those who think there's a difference between the two ? I'd be curious to know why.
Although the '<b>' tag still works in most browsers, it is technically deprecated, so even though there is probably no difference for SEO if you want to ensure your html will validate correctly in the future I would use the '<strong>' tag. If the search engines place any emphasis on html validation, then you want to make sure the html you use is valid and correct which would include not using deprecated tags.
This is correct. Although there is no difference between the <b> and <strong> tags, the latter is more widely-used these days.
Can anyone please explain how strong tag is more useful in seo than bold even though both have the same effect..?