Tell HN: minor bug (feature?) of the YC app
If you don't submit a full URL (i.e. http://) in the company URL field, the application appears to swallow your input (at least it did this for me). If you entered your URL as www. without the http://, you should double-check your application.
Sorry, url fields were excessively strict. I'd been meaning to fix that, so I just did.
Thanks for the heads up!