Blender has a select menu at the bottom of the 3d view port. on it are all the different selection types. Beside each command is the shortcut. If you want to create a short cut simply right click on the command and use the  menu this brings up to do just that. Also there is an addon (Dynamic Space bar) that brings up most menus you need via you guessed it the space bar. Want to doe something with Vertices? Hit the space bar select edit mesh tools, then select the vertices menu and voila all the vertices commands and the short cuts.

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"The true sign of intelligence is not knowledge but imagination".

Albert Einstein