Citizen Space is open-source consultation software, designed in collaboration with government. Citizen Space makes it easy for organisations to run and manage public consultation.
The Citizen Space Aggregator makes use of RSS feeds and RDFa data built into Citizen Space (and other systems) to produce a searchable list of consultations across multiple organisations. This is great (for example) for partnerships between local authorities and other public bodies (e.g. PCTs, Police Authority etc).