Originally Posted by After Shock Media

Get yourself a coffee grinder (do not use for spices etc. or get a separate one if you do).
Buy some assorted whole beans, keep them labeled and separate. (as little air and dry too).
Try each type of bean as a straight brew. (personally find french press best for this).
Keep notes.

After you get a good taste for assorted beans then feel free to blend some to match any flavor profile you are after.

Having to shop online for beans really should only be required if your after some super exotic beans or your area just has really really bad stores.