Stephen Downes recently published a post in his blog about: How to Get the Most out of a Conference.
Based on his experiences and reflections from many conferences, he is providing some general technical and practical guidelines from finding a good conferences, preparing a submission, traveling, presenting and networking in conferences, preparing your talk and following the activities after the conference. It’s really a good source to take a look at and get something out of it.
He has also referred to Clayton R. Wright‘s list of educational technology conferences which is normally updated every six months or every year.