Here are the search engine marketing headlines from the last week that I thought were most interesting:
Facebook also places you in a location-based network. Many of these are so large, they’re pointless.
Google Squared tries to take the unstructured nature of crawling the web and making it into structure data. In some cases it does a nice job, but in many cases, it fails completely or it shows false information.
It will not change adCenter at all. The number of ads shown will remain the same. The mainline ad rules remain the same. Ad position will not change (at least not just because of a rebrand – your bidding is what affects your ad position). There will not be any new ad units.
Basically, using nofollow will still prevent PageRank from passing from the linking page through the nofollowed link. But that PageRank is no longer “saved” to be used by other links on the page. It just “evaporates,” according to Cutts. Rand Fishkin at SEOmoz has some visual aids to help describe the process.
Specifically, the top 10% of prolific Twitter users accounted for over 90% of tweets. On a typical online social network, the top 10% of users account for 30% of all production.