Recommended Web Links

Every now and then, a useful website comes to my attention.  If it is one that I feel merits sharing with you, I will include a link to that site or page here.  It may be an entire site to which I would like to call attention, or it may be a single page or group of pages within a larger site.  I promise not to junk this area up with a long list of common sites, but I also promise to post links to those sites that deserve your attention.