Many magazines provide HOW TO links to their articles:
Outdoor Photography: http://www.outdoorphotographer.com/how-to/more-how-to.html
Popular Photography - http://www.popphoto.com/how-to
Digital Photo: http://www.dpmag.com/how-to.html
DISCLAIMER: CPC has no connection, commercial or otherwise, with any of the linked sites and makes no claim as to the quality of any services provided by listed commercial organizations.