Printable research cards are available for students to use when they are learning basic research skills. Not as intensive as others, but easy to use. Designed for easy use, use this online version of an almanac through its searchable database or use its common sense categories. Just make sure you load it up ahead of time for your lesson as it's graphics make it load slowly. Each word is used in a meaningful example sentence.
Most entries have links to a related web site.
Online versions on texts categorized specifically for Middle School age and beyond. Typically titles are available full text online. Unbelievable cache of calculators on such disparate topics as agriculture and air travel to weather and meteorology. A must have site for anyone teaching across the curriculum. Neat current event and hot topic links lead off the top of the page.