Silicon.com:

"The collapse of Enron has caused ripples in the unlikeliest places, as ASP Netstore reveals how its reliance on the US energy giant forced it to rethink its service model. Formerly a customer of Enron's broadband division, the company has now adopted a multi-provider approach for its data centre and connectivity requirements."

This shows how many ramifications there are in modern business, often unknown or hidden in plain view. See also Enron woes delay MSN broadband plans.

Another consequence is more pressure on companies to disclose and report numbers within short time frames: SEC Seeks to Improve Financial Disclosure.