This study investigated the effects of 10 injury prevention computer-based training modules tested by 120 participants from 65 facilities that provide care or support to elderly people needing long-term care. The training was delivered either on CD-ROM or at a Web site. A repeated measures analysis was performed with module scores on a pretest and posttest. The main effect of time was significant, demonstrating that participants scored higher at posttest. The main effect of module was also significant, suggesting that participants performed at significantly different levels on various modules. Evaluation results found that participants were strongly positive about the training content and delivery method. After the initial training, a 3-month follow-up study was conducted with 4 of the modules with 71 (59.2%) of the original participants. Gains continued to be significant for the 4 tested modules as compared to control groups. (Contains 2 figures and 3 tables.)