Yesterday (Feb 17) Sina Weibo (China’s leading microblog platform )and Ctrip (China’s leading online travel service provider) just announced their new collaboration through which you can find good hotel and flight deals from Ctrip by simply posting your travel requests on Sina Weibo (similar to Twits) then @Ctrip. I tried it by using my android phone to post shanghai+hotel@ctrip, within several seconds I got suggestion…