Should you enable SSL on your website? Yes, you should. Look at that! I just saved you the time of reading the full post. Years ago, there would have been a checklist of reasons for or against enabling SSL. Now there's no need for that list. The answer is yes and you don't even need to skip to after the fold if you don't want to. Every website should be accessible with that little 's' in https, have a green padlock and bask in the glory of some additional security. Better yet, https should be the only way to access your site.
If you do read on though, you'll get a good explanation on what SSL is for, why you should enable it and why things have changed since that non-existent post I could have made long ago.