Answer by Ian McAllister:
The best metrics will vary widely depending on the type of software you manage. If you manage a consumer internet product, then probably the best intro is http://www.slideshare.net/dmc500hats/startup-metrics-for-pirates-long-version. Video at http://www.ustream.tv/recorded/5336115. Another resource you should follow is the @kissinsights account on Twitter.'s startup metrics for pirates. Slides at
Generally, you want to capture input and output metrics. Input metrics might be traffic, new customers and other leading metrics. Output metrics might be the revenue they generate. There are a thousand other metrics in between. You can also do longitudinal or downstream value studies.
If you'd like to comment with more specifics about your product I'd be happy to suggest more specific metrics.