Many shareware developers depend on Google ads as one of their primary marketing channels. Lately, many searches are returning ads that are minimally targeted and appear to be bulk fed to Google. Many ads are from eBay affiliates trying to cash in on the eBay affiliate program that eBay has been promoting very heavily (hey, they just paid one affiliate over a million dollars for one month). The exception is when doing searches with multiple keywords that are technical in nature.
Now that they are a public company they have obligations to the shareholders to increase revenues and profits. This makes them less likely to limit the proliferation of what are becoming spam-like ads. The downside for shareware developers is that cost per click costs could become artificially inflated. Have you been adversely affected by the increase in bulk affiliate advertising on Google?