As the RecSysTEL workshop is jointly organized by the 4th ACM Conference on Recommender Systems (RecSys 2010) and the 5th European Conference on Technology Enhanced Learning (EC-TEL 2010), registration for the RecSysTEL workshop is expected in both conferences as follows:
ACM conference: all participants of RecSysTEL workshop have to be registered for this workshop at the ACM RecSys conference using with the One-day Workshop registration fee (unless you want to attend another workshop of the ACM RecSys so you should better chose the 2-Day Workshop Registration or have the All-inclusive registration fee). More details at the conference site: http://recsys.acm.org/2010/registration/.
ECTEL conference: participants registered for the ECTEL conference (and already registered for the RecSysTEL workshop at the ACM RecSys conference) have the ECTEL workshop day included in the full registration fee of ECTEL.
In summary, for registration at the RecSysTEL workshop, the registration at the ACM RecSys conference for a one day workshop is mandatory. The ECTEL workshop day is included in the full registration fee of ECTEL. Authors that are not planing to attend the ECTEL conference please contact the RecSysTEL workshop chairs.