Zotero is a free, easy-to-use open source research tool that helps you gather and organize resources (whether bibliography or the full text of articles), and then lets you to annotate, organize and share the results of your research. It combines the best parts of older reference manager software such as EndNote with more "modern" features like sorting, tagging, advanced searches and more.

Open Context, a free, open-access online database resource for archaeology and related fields, is a highly-generalized tool that pools and integrates individual researcher datasets and museum collections. To help make sense of this widely varying body of material, we have developed a user folksonomy system. Individual users can add value to the pooled content by identifying and annotating items of interest using a tagging system. Open Context has a variety of demonstration datasets now available for exploration and testing. These include field archaeology contextual records and finds registers, geo-archaeological samples, and a variety of zooarchaeological analyses. Some projects have rich image collections and narrative material, and others are of primary interest for specialist comparative analyses. 

This site is intended to help students, collectors and researchers to better understand the Ukiyo-e technique. Photographs and video clips show demonstrations of the techniques by master printmaker Keiji Shinohara. These demonstrations are accompanied by traditional prints from the Davison Art Center collection at Wesleyan University, and contemporary prints by Keiji Shinohara.With its impressive depth of information, captivating visuals and easy navigation, the Ukiyo-E Techniques website highlights the level of collaboration that is required to produce these sorts of materials.