Website evaluation

Doing the website evaluation was a valuable activity--it addressed a number of criteria for judging a site's credibility and use as educational tool. Some things I knew to keep in mind, like to look at who is publishing content and when it was last updated, but other things hadn't crossed my mind before--like what quality connection is necessary for this tool to be useful? Also, checking the presence of alt-tags on images never even struck me, but it makes so much sense. I think assessing the credibility of  a website is especially important for educators, whose credibility hinges on what tools they choose to use.