http://www.aopa.org/asf/safety_topics.html#mechanical

The world of aviation can be a mystifying one, and for those who hope to start a career in the field of aviation maintenance and repair, it can be even more trying. Fortunately, a number of websites contain primers on the basics on such fields, and this particular website has some very nice online courses on small aircraft engines and propellers. Created by the Aircraft Owners and Pilots Association (AOPA), the site includes short interactive guides and a quiz on propeller safety. Visitors can also read over a number of articles from the archives of their publication "Safety Pilot". Some recent articles of note include "First-flight fiascos" and "When Is an Aircraft Too Old?" For beginning students of aircraft maintenance, this website will be a most welcome find. [KMG]

http://www.hvacreducation.net/

With years of experience in the field, the HVACReducation.net group provides a variety of comprehensive and training programs for students in the related fields of heating, ventilating and air conditioning. While their organization does have a number of professional development programs for more advanced learners, their website also features a number of instructional modules and learning exercises for novices. Most of these educational resources can be found under the "Curriculum" section of the site. Here, visitors can look over modules that deal with electrical systems, refrigeration principles, and the basic electrical systems of such devices. After looking over those materials, visitors may wish to continue on by looking over their schedule of classes and upcoming conferences. [KMG]

http://enlvm.usu.edu/ma/nav/doc/intro.jsp

Learning about various branches of mathematics can be tough at any age, and this fine set of resources created by staff members who are primarily based at the Utah State University is designed to make this process just a bit easier. With substantial funding from the National Science Foundation, they have successfully developed a large set of interactive online learning units that deal with topics such as geometry, arithmetic, and trigonometry. First-time visitors may want to begin by looking over the "About" section, which includes a tutorial designed for educators who wish to use the materials as well as another tutorial that will teach educators how to create lessons and activities. Delving into the learning materials at the site, visitors can browse through the learning modules by subject or grade level. Visitors can also browse teacher published lessons, all of which have been vetted by staff members at the National Library. Finally, visitors will want to definitely look over the virtual manipulatives library, which includes instructional materials that students will find quite engaging. [KMG]

http://www.chem1.com/acad/webtext/virtualtextbook.html

Chemistry serves as a fundamental discipline for those who will go on to careers in everything from medicine to nutrition and it is important for students of this science to have a wide range of resources at their disposal. One rather useful online resource is this virtual textbook for general chemistry created and updated by Professor Stephen Lower of Simon Fraser University. Visitors to the site can dive right in by reading an introduction titled "What is Chemistry all about, anyway?", and then proceed through a very well-structured set of chapters dedicated to the basics of atoms, equations, chemical energetics and other topics that would be typically covered in such a course. The site is rounded out by a good set of links to related interactive chemistry tutorials and exercises. [KMG]

http://www.aaa.si.edu/collectionsonline/cornjose/index.cfm

Joseph Cornell was a man of many talents, and during his sixty-nine years his artistic endeavors included short films, shadow boxes, colleges, and his well-known assemblages. After his death in 1972, his sister began the process of donating his personal papers and various effects to the Smithsonian Institution. Over the past few years, the Smithsonian's Archives of American Art have worked to place a number of these materials online. First-time visitors can read a brief biography of Cornell in the "About the Collection" area and then move on to the "View Collection" section. Users will find that the collection is arranged into eleven series, which include areas dedicated to his diaries and various ephemera. Some sections of note here include the seventh series which contains some of Cornell's later inkblot drawings and unfinished collages. Lastly, the second series here includes correspondence with artists who Cornell admired and collaborated with, such as Geraldine Page and Mark Rothko. [KMG]

http://www.ushmm.org/museum/exhibit/online/flight_rescue/

As this online exhibit opens, visitors will hear a prelude played on the piano and a map of Eastern Europe and Russia unfold before their eyes. This is the beginning of the Flight and Rescue exhibit, presented by the United States Holocaust Memorial Museum. With the use of powerful visual materials, primary documents, interviews, and striking narration, this interactive exhibit tells the story of how some 2100 Jewish refugees were able to escape the Holocaust through the assistance of a Dutch businessman and a Japanese diplomat. In each of the exhibit's four sections, visitors can pause the narration to look through some of the primary documents that help provide additional context for different elements of the refugee's journey. After viewing each of these four sections, visitors can also read the full-text of the exhibition, which is available in English, Chinese, Dutch, and Japanese. For visitors who would like a closer look at any of the documents used to create this exhibition, a search engine will let them examine each one in great detail. [KMG]

http://www.digitalhistory.uh.edu/

Utilizing digital and online technologies to teach different disciplines continues to be quite popular, and the Digital History website will be a most welcome find for teachers (and students) of American history. Developed in collaboration with the University of Houston, the Chicago Historical Society, the Museum of Fine Arts in Houston and several other entities the site includes an online American history textbook, an interactive timeline, a multimedia section, and a very rich selection of primary source materials. The multimedia section is a real find, as it contains several well-thought out lectures with titles like "The History of Domestic Violence", "The Cultural Civil War of the 1960s", and "America Today and America Past". Students will also appreciate the writing guide area, as it contains several short essays on how to write in a history class and how to compose a critical book review. [KMG]

http://www.stanford.edu/group/King/index.htm

Stanford University has been the home of the Martin Luther King, Jr. Papers Project for over twenty years, and they also have the Martin Luther King, Jr. Research and Education Institute. On their website, visitors can learn about their work, which includes sponsoring conferences, providing research fellowships, and developing the Liberation curriculum for educators interested in nonviolent movements. The Liberation Curriculum section is actually a fine place to start exploring the site, as it contains lesson plans and other online resources (such as transcripts of King’s speeches) that will assist teachers in crafting valuable classroom experiences. Visitors will also want to make sure and visit the King Papers Project section of the site as well. Here they can find transcripts of some of King's most important works and a number of audio recordings of his sermons and speeches. [KMG]