Live.com everybody knows is a search engine from microsoft but after bing.com introduction it  URL will redirect to Bing.com for 45 days after launch. After this period it becomes the front door for all Live services including Office Live and Windows Live.

So it means that things are changing for microsoft.

According to adcenter community

We have made numerous improvements to our algorithm, focusing on spelling, freshness of results, and core ranking.  Our algorithm is changing continuously to provide the best results. Although we have a six month release cycle for major updates, our algorithm is refined everyday to improve the relevance of our results and to better address our users’ intent.