In addition to the wealth of information in front of you in this forum, I have found the following to be very helpful...
Malt flavor grid: http://sipsmokesavor.com/index.php/malts
Many reviews by a relative newbie: http://scotchnoob.com/reviews/
Single Malt Whiskey Flavor Map: http://www.malts.com/index.php/en_us...ky-Flavour-Map
Kevin Erskine, Instant Expert's Guide to Single Malt Scotch
Tasting events are gold mines, allowing you to sample a variety without committing to an expensive bottle which you might not enjoy. Checking with your local St. Andrew's Society or Scottish Heritage Society might be helpful in finding one.
The world of single malts is amazingly diverse, fascinating, complex and immensely enjoyable. It is not a subject which one masters at all quickly. Welcome to the adventure.