The most aggravating effect caused by the poor performance of StretchBlt is to make scrolling very slow. If you call StretchBlt to draw an image each time the scroll bars are moved, you may be in for a long wait. A simple solution is to only call StretchBlt when the size of the image actually needs to change. Instead of stretching each time the image is drawn to the screen, only stretch it when necessary and rely on BitBlt (which is much faster) for the majority of your drawing. The downside of this approach means storing a copy of the stretched image in memory as well as the original source image. Considering the ever-present need for speed and these times of cheap memory modules, making a copy seems very reasonable.

There are several search engines that support the Sitemaps.org protocol, most important ones being: Google, Yahoo, Live (former MSN) and Ask. If you’re a webmaster most likely you’ve heard at least about the Google Webmaster Tools, a web based interface that allows you to see interesting results based on the analysis of your sitemap (inbound links, top searches, site errors) more or less through the eyes of Google itself. However, Yahoo offers a similar tool called Yahoo SiteExplorer, but unlike Google’s it only allows adding/removing sitemaps, removing individual links, and more recently adding rules for indexing Dynamic URLs.

Now that may well be out of reach for most of us but you can see the Adsense Premium program in action on sites likes LinkedIn, CNN, About.com, AOL or MySpace.

Thanks agains.