Measuring Impact of Scholarly Journals

It is extremely difficult to operationally define and measure "scientific impact". As a multi-dimensional construct no single indicator can adequately measure scientific impact. In the past, Nature (17 June 2010) went to basics, carried out a poll result and analysed the responses to suggest that there is a mixed feelings about using metrics to assess contribution of scientists. A clear, simple, easy and objective way of counting publications of scientists (and their use/download and citations) may be required, but other hard-to-quantify (qualitative) aspects like teaching, mentoring, team building and service to community cannot be overlooked.