What about collaboration and working with developers to incorporate their knowledge of sound programming structure and data architecture into the site? My site looks simple from the front end, but has a ton of stuff happening on the back end of things.
Excellent data management will be key for me and its something I need a lot of help with. The front end was easy for me to draw up but I need a great creative relationship with a technical cofounder to make the site as powerful as I'd like it to be.