Mozilla’s Firefox address bar completion feature will provide for you the most common and recent websites visited (versus I.E. which gives you the recent addresses in alphabetical order only). So I’ve comprised a list of those websites that I go to regularly for each letter of the alphabet. If you see a dash ‘–‘ that means that either no websites came up or random one time websites came up that I didn’t think should count.
Example, for K the only result I got was Katronic.com and I don’t have any recollection of ever going here. So it’s not worth it to put it on my best of the best list.
If you’re feeling motivated, post your Firefox internet alphabet in the comments.