Swiss Soccer Match Reports

Focussing mostly on the Grasshoppers, includes many domestic and European matches from 1993-1997.
http://www.iis.ee.ethz.ch/~neeri/soccer.html

Wsoccer.com: Swiss Soccer

Offers results, fixtures, standings, stadiums, and club information.
http://www.wsoccer.com/leagues/switzerland/

UEFA.com: Switzerland

News, fixtures, results, and standings for European competitions and league clubs.
http://www.uefa.com/FootballCentral/Directory/Country=SUI/Association=128/index.html

International Soccer Server: Nationalliga (NLA) and Second Division / Relegation Series

Tables, results, fixtures, cups, statistics, and links.
http://soccerway.com/results/?filename=soccer_data/tab/games3.swi1.html