Top 10 Obscure Google Search Tips

I fancy myself a Googling pro - but even I hadn't heard of a couple of these!

Top 10 Obscure Google Search Tips

I love me some Lifehacker :)

Does anybody know how to contact Google or Gmail to report abuse?

Like the subject says.

Does anybody have an email address or web link to report abuse to Gmail (Google)?

Their help documents on the subject are an endless circle of FAQ's that never appear to lead to the "form" that they want you to fill out. I can't find the form. Nor can I find an abuse related email address to write to.

Any help is appreciated. Thanks!