... I bet they won´t show you the real killer tricks ... like:
wanna know a true google backdoor ??
do the following:
1.) register a brandnew domain
2.) search for your favourite keyword at google
3.) check out the namserversettings of the top listing
4.) point your brandnew domain to those namservers
5.) chose an existing domain and link from this domain to your brandnew domain like
http://www.brandnedomain.com/keyword.html
6.) wait 4 weeks ... and redirect !!
... and as always, of course I would never ever do this myself !!!