Excel Consultancy

http://www.sysmod.com/

This is the website of Patrick O’Beirne ,the author “of Spreadsheet Check and Control”, the  authoritative book on understanding and preventing spreadsheet errors. Patrick is available for consultancy and training in the area of spreadsheet safety.
http://www.exinfm.com/

This is the site of Matt Evans. It contains over 100 free spreadsheet covering financial analysis.
Matt also provides a consultancy service helping to improve how your company uses analytics and metrics in the running of your business.
My favorite site for learning about using Excel for finance and organizational metrics.