I've found that the posts I made on my blog early on sometimes have the irrelevants that Google assigned in the beginning, it doesn't seem to forward revise itself very well against the content of the rest of the site (so older and high trafficed articles sometimes get terribly low paying ads for irrelevant stuff like free blogs). It took Google about two months to consistantly show relevant ads for my blog. Now that it's got an idea of what my blog's about it's generally good at either pulling up ads relevant to the post or defaulting to ads relevant to the general site. |