There are lots of companies out there using onlineIS as their brandname
the .com is online information services
the .de is a marketing company etc
IMHO
It is not a valuable name in itself as online is OR online is dot net doesnt make any sense in English, but an existing company with that name may have a use for it if they want the .net as an additional domain, but as an additional name, they probably wouldnt want to pay too much.