I tried using Zotero on scientific journal sites such as PLOS, Nature,Science, Elsevier’s Science Direct and it works perfectly. I have tried all their claimed features and they work seamlessly. When compared to commercial equivalents like Endnote and R
publicly available courseware (lecture notes, handouts, slides, tutorial material, exam questions, quizzes, videos, demonstrations etc) from the world's universities, colleges and other educational institutes; other educational resources
many of the past issues were on thematic concerns; ever of greater importance in academic and knowledge communities is the how-to of electronic publishing
The invisible web, or deep web, is estimated to be 500 times bigger than the searchable web and comprises databases and results of specialty search engines that the popular search engines can't index.