Just about every Internet marketer will ask the same question sooner or later: "Which websites attract my target customers?"  Google Ad Planner aims to supply you all with answers; the tool's even got a different phrasing of the original query posted on its homepage.

Never mind Russia; it is women who are, to misquote Churchill, riddles, wrapped in mysteries, inside enigmas.  But Microsoft, Ogilvy Chicago, and Mindshare have researched the ways in which women connect with different brands online.

If you're working with a minor ad network, now might be a good time to find an alternative, or at least call the company up and see how things are going.  The Wall Street Journal is documenting some economy-related problems in the industry, and more than a few businesses have been shuttered due to them.

Companies have tried all sorts of stuff to get young people's attention, and one of the main approaches involves fitting in.  They put ads in popular hangouts, hire "hot" spokespeople, and so on.  But it looks like companies might be better off using email advertising instead of invading social networks.

Sites change, people make mistakes, and both of these facts can result in broken links.  Luckily for you, a new tool from Google is able to detect when links lead to 404 pages on your site.  Get the links fixed, and you may see some improved rankings and extra traffic.