Of course you would want to update the address of all contacts associated with your accounts whenever the account address changes. But how do you go about doing this? The Salesforce Mass Updating system is all you need to keep your contacts up to date. This service is so superior that you can actually act on multiple related records via a single page. You know, technically speaking, mass update is not built into Salesforce. So unless you can count using a customer view which provides limited functionality you would be in big trouble. Luckily, there are a host of tools that allow you to make mass updates on Salesforce. And these tools are available free of charge especially for non-profit organizations. Two tools that come in handy in this regard are Apsona and Demand Tools among others. Each has its fair share of strengths and weaknesses. Be sure to check out different reviews before using any of the above mentioned tools though.