The MAA Journal Writing Awards site contains PDF copies of the articles that have won MAA journal writing awards over the years together with short biographical sketches of the authors.
The Carl B. Allendoerfer Award for articles published in Mathematics Magazine
The Chauvenet Prize for an outstanding article on a mathematical topic
The Trevor Evans Awards for exceptional articles that are accessible to undergraduates and published in Math Horizons
The Paul R. Halmos - Lester R. Ford Awards for outstanding expository papers in The American Mathematical Monthly. Between 1965 and 1975, Ford awards were given for articles in the Monthly or Mathematics Magazine. Since 1975, the awards have been for strictly for Monthly articles.
The David P. Robbins Prize for an outstanding paper in algebra, combinatorics, or discrete mathematics
The Beckenbach Book Prize for a distinguished, innovative book published by the MAA
The Euler Book Prize for an outstanding book about mathematics