AdaWiki

Thanks to the ease of creating webshops, many manufacturers will sell parts to you directly at low cost! This can be cheaper and easier than Digikey, or Mouser especially in larger quantities. I do it myself all the time

OnSemi "On-semi is the nuts-and-bolts part of the old Motorola. For $11 they will send you around a dozen different part numbers. For the lower cost parts you can get 25 pieces. As the price goes up the quantity reduces." - http://www.luciani.org