If you have been trying to submit your site to the Yahoo! Submit Your Site form, you are probably getting a timeout error.
Submit Your Site Request Failed
Your submission request was not accepted because: The following resulted when trying to access your document: timeout Please correct and resubmit the form below.
As you can see from this screen capture, I tried submitting www.yahoo.com to the Yahoo! submit URL form and it spit back the time out error.