Citation analysis is a method developed by information scientists for evaluating the impact factor of journals. Theoretically, citations lead to use and uses lead to citations, thus the most cited journals should be the most used; the least cited journals, the least used. This paper selectively reviews the citation analysis literature for papers dealing with journal use evaluation, e-journals and citation patterns, and the relationship between citation and journal use. It is hoped that citation analysis would appear to be suitable for evaluating the use of e-journals, and of great potential value in the management of library journal collections.