Wufoo's Interview
startupsopensourced.com
startupsopensourced.com
If you implement a new service out of necessity to solve a problem you have at work, it is a very good indication that service is also needed by other companies. Instead of using this service you created internally only, you should release it and see if there is a great demand for it.
I think this was a missed opportunity for Wufoo to create another great service.
I don't know how much Chargify makes, but Rusenko had to build Weebly's payment system and he didn't like doing that. Same story with Djangy. WePay also comes to mind, but I don't recall them seeming frustrated about implementing theirs. I would imagine it's such a difficult problem (or would have been in 2006) that it'd feel like running another full-time startup when they still had the challenge of delivering a good form builder as their main priority.