Several data sources indicate that the desire to obtain both a college and university credential in Ontario's postsecondary system is considerable. Aspirations at the start of college are high, with at least one quarter of college students having serious intentions of attaining a degree after a diploma. Data sources include the College Student Alliance Survey, the Ministry of Training, Colleges and Universities Student and Graduate Satisfaction Surveys, the Statistics Canada's National Graduate Survey, and both the Ontario college and university application services (OCAS and OUAC). Currently, 7% of Ontario's college students report having a university degree and over 7% of college graduates go on to university within six months of graduating. When adjusted for enrolment, this translates to an estimate of 6000 university graduates attending college annually, and over 4000 college graduates attending university (within six months of college graduation) annually. These values are similar to Statistics Canada's National Graduate Survey, which showed that of the graduating class of 2000, 13% of Ontario college graduates had a degree and 6% of Ontario university graduates had a previous college credential. Mobility patterns indicate that college graduates commonly attend university close to their college of graduation. Although the proportion of college graduates going on to university is increasing, it remains lower than the proportion that go on to university from applied diploma programs in other jurisdictions, such as British Columbia, Quebec and some American states. Appended are: (1) Number of surveyed 2003-04 college graduates attending university six months after graduation by institution; and (2) A comparison of system wide enrolment share of Ontario universities and university attendance of college graduates, six months after graduation. (Contains 9 tables, 6 figures and 3 figures.)