I do not see many people here for discussion but I think it's where this thread belongs.
It's not a secret in the SEO industry in China, but only a few people know how, and those people are making decent $$$$ from this bug in Baidu spider.
Back to the point, I discovered last year that some Chinese websites have links from the homepage of Apple etc. This is hard to believe since those websites (in Chinese )center around a totally different field and are in fact crap. There's no way Apple would link to them.
When I did a cache:www.apple.com on baidu.com and I saw the anchor and url of those website, but when I opened up Apple's website, those links did not exist at all!
Later that year I learned from someone that there is a software that actually can fake any website you want and tricks Baidu spider into believing that website is the real Apple or Microsoft website. I do not know the name of the software but do see a screenshot.
So how could this be possible? I know there must be some vulnerabilities in Baidu spider but I can't figure out where.
P.S. I see someone saying that he has some similar software designed specifically for Google, which can take your keyword to the first spot in a few days although I have no idea if he's serious.