I can't actually get the link to load here so I can't evaluate the site itself.
But on a general note: Hire an agency and spend your time growing your business in other areas and stop doing your own PR.
A good agency will help you create the proper messaging to use from your business' strategy, make sure that the announcement newsworthy, and, frankly, likely already has rapport with journalists and knows what they need to write a good story -- this will make them more effective and more efficient than you at pitching your announcement.
The opportunity cost on the pitching alone is insane so, seriously, don't do your own PR.
Site might have been briefly down (perhaps a minute) when pushing some changes. Should be back up: http://submit.com/
As for delegating your PR I'm curious to hear on your personal experience with this. I generally do my own PR and it works out really well. Doesn't cost too much time either if you know what you're doing and at least the tech media prefer to deal with the founders directly. (I happen to be in the fortunate position that tech media actually cater to my customer group, so that's where my experience lies.)
But on a general note: Hire an agency and spend your time growing your business in other areas and stop doing your own PR.
A good agency will help you create the proper messaging to use from your business' strategy, make sure that the announcement newsworthy, and, frankly, likely already has rapport with journalists and knows what they need to write a good story -- this will make them more effective and more efficient than you at pitching your announcement.
The opportunity cost on the pitching alone is insane so, seriously, don't do your own PR.