(SyndicateMyNews) - While some snub their mouse at Microsoft's new search engine, Bing, I believe a 0.4% gain in US search market share in June was promising and so I am reserving judgment on Bing.com's success.

Bing.com's US search market share in June, its first full month online, rose from 8% to 8.4% - a 5% gain, according to figures provided by comScore.

Google, the most popular search engine, maintained a 65% US market share.

Yet it appears that Microsoft's Bing was picking up search action off of the shoulders of Yahoo, whose search share in the US market in June slipped to 19.6% from 20.1% in May.

While critics loyal to Google snub Bing, a poll implied that the vast majority of US search users will not even bother trying Bing, preferring instead to stick with search turf they're more familiar with - namely, Google.

But Bing's sidebar view of a search link poses an interesting question in considering how Microsoft's search platform gives users a sneak peak at a page's content before clicking. That gives bing.com a few brownie points and in watching Microsoft's TV ad campaign, it appears Bing.com is being aimed at an older, middle aged crowd while Google continues to capture the acne-prone age group.

It makes more sense to target a US audience with the greatest buying power than it does to try and lure the 17 to 25 age group, who while a buying group of certain kinds of products, do not have as much freely spending money to throw at online advertising.

Should Microsoft continue to win market share, bing.com could prove to be win.

To a degree, I question comScore's results in pegging US search market share to any one particular search engine. While comScore tracks online traffic the level of cross over visits from one site to another does not appear to be taken into account. Surely US search users visit more than one search Site even if they favor Google over Yahoo or Bing.

So lets catch up with Bing in a couple more months and then weigh in on its success, but measuring it against Google or Yahoo doesn't make it better or worse - only different and isn't difference and choice what's supposed to be so interesting about the web?

The next quarter's financial report from the three top search engines may reveal a bottom line reaction as to how well Microsoft's Bing is really doing.