One thing I've noticed is that there's not really a comprehensive level of validation for Twitter, Facebook, LinkedIn.

I believe it does validate it to be a URL for a new user, but may not provide a lot of feedback for someone trying to enter (for example) their @TwitterName.

In addition, if you've added ActiveSocial to an existing site which was already recording Twitter/Facebook/LinkedIn (as in our case), it won't check the user's details and prompt them to correct it (even better, suggest the correction).

I do recognise that I could use some validation rules within DNN, but it seems like that doesn't give a lot of feedback in itself. These are just little touches which would make it nicer - overall it works pretty well. Would be cool if Twitter feed integration (other than RSS) was supported, with oAuth authentication - but this is just a nice to have too.