A picture may be worth a thousand words, but a video has the potential to hold the attention of the viewer for much longer. Recently, high-quality stock photos have been made available to the general public for nominal fees. But, what if you want your annual report, website or online marketing materials to be more memorable than a single photo? In years past, you would have to hire a graphic designer or filmaker to make that happen. Now, stock video clips are available on some stock photography sites, like istockphoto.com. This company's video clip collection was launched late in 2006 and now offers 30-second clips for as little as $5 each.