In case you haven't discovered it, Fathom is a good resource for information on a variety of topics. There are a number of articles on memory, most of which are listed under Science & the natural world> Psychology> ... Check out the Neuroscience and Brain Research, and Cognitive Psyc sections in particular.
Here's a few I want to mention specifically:
(I hope the links work; deep links to this site seem to work better if you go to the home page first.)
an article about the aging mind from Dr Denise Park, one of the leading researchers in the effect of aging on cognitive tasks (which for some reason seems to be categorised under Global Affairs> Demography & Population)

History as public and private memory

Memory and the written word (quoting my favorite Mary Carruthers - see my newsletters of February 2002 and April 2002 ) (listed under Arts & Humanities> Film & Media> Publishing & Printing)

Social psychology and memory - an extract from a classic work, Remembering, by Sir Frederick Bartlett: 

The dynamics of human memory, by the well-known neurobiologist Steven Rose:
 
Strokes, Accidents and Alzheimer's: Explaining the Human Brain