I have been working for Google over three years. Before that, I was working for several other high tech companies. While working for those companies, I interviewed hundreds of candidates for different job positions and accumulated lots of experiences of what is the common pitfalls and how to help candidates pass the interview & get a nice offer.
In current super tough interview environment, having a smart and experienced mentor is one of the keys for your success.
I like to offer my free service to help qualified candidate to get a job in Google.