Check out the top SEO, search engine and Internet marketing industry news stories from around the Web this week.

Bing Fires Two Marketing Execs Over Vendor Issues
According to Search Engine Land, Microsoft recently fired two Bing executives for “mismanagement of company assets and vendor procurement.”

Google Shares 7 Tips With Free Web Hosting Sites to Avoid Penalties
Google recently shared reasons why it will remove websites from its index. The main reason why a website would be removed is if it doesn’t meet Google’s quality guidelines. Google’s main objective is to rid its index of spam websites that its users have no need for.

Too Much SEO? Google’s Working on an “Over-Optimization” Penalty for That
According to Search Engine Land, Google’s Matt Cutts made an announcement that Google is working on a search ranking penalty for websites that are “over optimized” during a panel at SXSW. The new penalty will be launched within the next few weeks.

9 Hot Social Networks to Watch
Although they haven’t had the same amount of success as Facebook and Twitter or the seemingly overnight success of Pinterest and Foursquare, these social networks are worth paying attention to. Don’t miss out on these 9 up-and-coming websites designed to connect people online and in real life.

Bing, Not Google, Favors Wikipedia More Often in Search Results
According to a recent study, when you conduct searches on Bing you’re more likely to see Wikipedia in your search results than for the same search on Google.