A lot of startups exist as a business with contributions from the public to gather content. Startups like Digg , Reddit , stumbleUpon and Wikipedia have been able to create something useful that attracted users who ended up providing content for these sites. Others have created platforms that allow innovation and creativity by leveraging on architecture of participation.
1. Open Innovation
The first idea revolves around Open Innovation. Products are listed under three categories. Platforms that allow peer to peer (p2p) product creation .There are sites that initiated by corporate organizations and last but not the least is public sector peer production for institutions and agencies. The list of ideas and products can be found here: Open Innovation Ideas and Online Crowd Powered Ideas and startups.
2. Enterprise 2.0
A lot of applications have been built around the web 2.0 buzz. Companies have always been concerned about how their data can be safe with a startup that has products on a remote server and sometimes the service is even still in beta stage, but these startups expect enterprises to sign on and pay for particular service. The greatest concern has always been security. But some companies have are doing great and new companies are springing up every day in the enterprise space. Kart has identified opportunities in four areas with great potential. Enterprise 2.0 Opportunities