Is there a minimal installation of ADB?
I do not really understand why anyone would prefer downloading an old version of unknown origin from a malware-ridden website to downloading the latest official version directly from Google itself. I guess to each its own.

Here are the links to the Google repository:

The latest version of the platform tools (contains just a few binaries - less than 10Mb in size each):


Windows
Linux
Mac


For users of Ubuntu and Debian (distributions I personally use) I have put together a small bash script which finds and installs the latest version of the platform tools - Installing Android platform tools (ADB) on Ubuntu