For business planning, check out these sites:
The Center for Business Planning
Lots of resources and quality links
Four key questions are a great starting point
For marketing planning, some sites to consider include:
About.com's Marketing Plan section
Links to quality articles
Sample marketing plans from
Each of these approaches has some useful lessons. Marketek can assist in preparing and reviewing business and marketing plans, contact us for details.

Millenium Bridge and St Pauls Cathedral, London