Hi. I created portal
http://bounty.cool. What you can there now:
1. See the list of actual bounty campaign with rating's of ICO, date of begin and end, day till the end, progress and type of bounty.
2. Sort list like your want.
3. Free search.
What else wood be on portal? Thank you for your time and answers.
It would be a useful feature, I think, if there was an option to filter bounties by their types, like signature, twitter, facebook, articles, translation and etc. This way the one who's interested only in article bounties, for instance, can quickly filter them and focus on what he really needs.