Google and Bing have presented a large number of innovations and services this last couple of weeks. Here is an overview. Google lets you search the Twitter archive This week we saw reports making Twitter the number two search engine in the US, behind Google, but ahead of Yahoo! We are not so sure about that. Twitter counts automated searchs as regular ones, Yahoo does not. Still, the Twitter search engine does give you access to a real time stream of tweets, i.e.