Another category: SDKs, or any code you give your customers to embed within their own. Not only will this make them more comfortable (since they can inspect the

Another category: SDKs, or any code you give your customers to embed within their own. Not only will this make them more comfortable (since they can inspect the code), you're likely to get free, quality work in the form of contributions. I've been pleasantly surprised at how many people have contributed to the Rollbar (http://rollbar.com http://rollbar.com) libraries... we've had 10 different contributors to our Ruby gem and a handful to our other libraries. Would highly recommend this strategy to others.