In respect of your post, it does read well actually. Might be good for you to attach an image (website/product) to break the post. Also the last paragraph, ‘Sign Up’ should have a link to your website.
Business Model (for lack of a better word - it is 5.15am with no sleep yet!) - I have always thought social media in whatever guise is a no no. Why? it is a hard slug. Having said that, all businesses battle for survival. On this occasion, it does makes sense. I have signed up.
@Shine, Looks interesting just want to add the necessity of securing your site (HTTPS). Being that you will be collecting user data, it adds to the value proposition earlier on even if its just in Beta.