The Three Investigators series

After searching high and low, and contemplating if I should get them at exorbitant prices (but couldn't make myself do it), I've finally managed to locate The Three Investigators series.

These were brilliant, they were a staple in my childhood and I grew up reading them.

I have no idea why but I'm on a book spree kind of mood today (I bought the Roald Dahl Phizz Whizzing Collection at a whopping $100, they're a steal at that price I know, but they still milked my wallet for all it's worth), so imagine my elation when I finally found these.

The 4shared site where you can download the WHOLE entire thing as a rar file.

http://www.4shared.com/rar/ilB97JBO/The_Three_Investigators_series.html

A website I found with a different design for the books (and pages) from the above that you can download or read/print

http://www.goanwap.com/ebook-tti-list2-tti.html

And finally, the list of titles:

http://www.threeinvestigatorsbooks.com/originalseries.html

I found some other stuff pertaining to this series on scribd.com, but the titles were not found in the list, so I'm not sure what the deal is. 

Are there fake books of this series out there?