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Web service becomes an important paradigm for internet application. To realize userspsila complex requirements, services with different functions, but sharing common features, should be selected quickly from a huge number of services on internet to be collaborated. Researches on the discovery of services have put the emphasis on the finding out of services with similar functions, which is unable to accomplish the purpose of collaboration. We propose a discovery method for the collaboration based on Collaborated Semantic Link Network. C-SLN is constructed using services represented by E-FCMs and the similar and associated relations between E-FCMs as well. Through the experiments on a set of public web services, our approach shows that it can help to improve the efficiency of the discovery of services in favor of the collaboration.