pay per click conferences

Does anyone know of any pay per click conferences or seminars that i could check out to further inhance my internet marketing skills? I went to one last year called PPC Summit where experts from Microsoft, Google, and others teach keyword development, customer conversions, bidding strategies, web site analytics, quality score & site rank, search engine copywriting tactics, B2B & B2C ad techniques, web site & landing page development and a lot more. It was really great and if you would lke to check them out just google ppc summit. If anyone knows any other good conferences that i could learn a lot from please let me know. Thanks.