For those interested in trends & hard data on startup failure, this may be of interest - http://www.cbinsights.com/blog/trends/startup-death-data
What will be great to do if at all possible is to identity common patterns across key sectors. Here are some patterns I have seen:
Lack of marketing/growth -Everpix, Sonar...
Lack of domain expertise - Vitoto...
No coders/programmers in founding teams- standout jobs
Product management / too many product features - intellibank...
No customer validation/didn't get out of the building / product/market fit - groupspaces, hello parking...
Perhaps these patterns could be broken into consumer Internet / SAAS.
Of course some of these patterns are inter-related & drive each other (e.g. No Domain expertise >> lack of customer validation >> Poor product management/wrong features >> No growth)