In the June search share, both Yahoo and Microsoft Bing gained a weensy bit of market share, while Google gave some up. "Google domestic core search market share was 62.6% in June, down from 63.7% in May. Microsoft's Bing saw its market share grow to 12.7% in June was up from May's 9.1% growth. Yahoo! search market share increased to 18.9% in June from 18.3% in May. But Google's share dropped by 1.14%," reports All Things D.