Changes to Google in the past year continue to make link=building trickier, but Julie Joyce still calls the tactic a valuable tool. She believes marketers can use the tactic to grab sites that already have content and back-links associated with them, especially if brands are thinking about building new sites. Might seem like a crazy idea, since the marketers wouldn't really know the history behind the site, but Joyce provides a list of how to vet expired domain names, how marketers may want to use them, and how to identify some good signs of expired domains, such as authority links. Read …

Yep -- the moment of truth that Brian Solis talks about in his latest post details the search discovery process on an engine, but what happens when that discovery happens on a social site? He believes it's the next question in the evolution of online marketing. The new generation of connected consumers rely on a network of relevance -- not just search engines -- as an alternative and efficient means of guiding decision-making. Read the article here.

Danny Chadburn poses an interesting question: What if Web ads became opt-in? He provides some examples of similar laws that have passed, and contemplates what would happen if marketers could only advertise to people who had actively welcomed their business ads into their digital world. He doesn't call out any one type of ad, such as search or rich media, but rather looks at the entire advertising landscape.