The good news about the Web is that it is dynamic. A search performed today may give very different results than one performed yesterday, or one that will be performed tomorrow. The bad news about the Web is that is dynamic. The teacher who plans tomorrow's lesson on today's Web findings may be out of luck. The constantly changing, dynamic nature of the Web is one other reason to consider building and using a weblet.
Teachers invest significant amounts of time in creating instructional materials for their classes.
Most plan on using the materials more than once, and during subsequent academic years. Linking to excellent resources on the Web is an efficient use of existing resources, but in doing so the instructor is committed to maintaining these links for as long as they use the instructional materials. The issues of speed, access, and the nonarchival nature of the materials used might start a teacher thinking about constructing and using a weblet for instruction. Remember, however, that what you are doing in creating a weblet is removing the most powerful feature of the Web, namely, world-wide connectivity. Creating a weblet for instruction might also require a large amount of storage space.