Investors who follow Vanguard founder John Bogle's investment advice are often referred to as "Bogleheads". There have been books written by Bogleheads, and the faithful followers even congregate at an online message board - www.bogleheads.org - which was an offshoot of the original Morningstar.com "Vanguard Diehards" message board.
Forbes has a great article from Laura Dogu, a writer and leader on the online Bogleheads' forum, which recounts the recent gathering the group had in Pennsylvania. The Bogleheads' are a great group of people following the excellent advice given by one of the champions of the individual investor - John Bogle. The article is worth reading because Bogle's advice is so worth following.