We have had good success on running an audio blog based on CTI applications among farmers in Northern India ( Kanpur-Lucknow belt) as a horizontal knowledge network for sharing problems and solutions. This application called Kissanblog can be experienced at www.dealindia.org . In this area where literacy and language are problems, mobile phones can provide many lateral solutions. We are now experimenting with the new 'voice sms service' launched by local operators to create an intermediate layer for threads and forums. But the problems of automatic tagging and serach applications for audio files are yet to be solved. Now our student volunteers transscribe briefly the Q&As and we allow the taxonomy to emerge. What are the latest applications/solutions tried out elsewhere or in other reserach labs for similar projects?