Without knowing the target audience of the product, or the actual product itsself, it is difficult to say whether people would use these features and whether your site would benefit from having them or be at a disadvantage by not having them.
I think there are plenty of cases where social networking sites are unnecessary, even in a community... for example there isn't a 'post to twitter or fb' on stackoverflow every time you answer a question, the value is in the site its self. However there are many other sites that gain a little something extra by either having the option to authorize a login or share activity through social media (i.e. i think it's cool that pandora tells me that a friend likes an aritst when i'm listening).
Can you tell us a little more about the target market and maybe a little more about what the web app does... saying that it's "web 2.0" is pretty cliche and says absolutely nothing about the actual product.
I think there are plenty of cases where social networking sites are unnecessary, even in a community... for example there isn't a 'post to twitter or fb' on stackoverflow every time you answer a question, the value is in the site its self. However there are many other sites that gain a little something extra by either having the option to authorize a login or share activity through social media (i.e. i think it's cool that pandora tells me that a friend likes an aritst when i'm listening).
Can you tell us a little more about the target market and maybe a little more about what the web app does... saying that it's "web 2.0" is pretty cliche and says absolutely nothing about the actual product.