The term flashbulb memory shows up in an AltaVista search about 100 times. Some of these only mention the term in passing, or as part of a story. But there are also a number of pages that are part of university psychology departments and some of these hold extensive discussions on the term. One site seems particularly interesting, but I can never seem to connect to it. For the interested, further information can be found at:

The effects of social interaction on memory
Affect and Accuracy in Recall
How Memory Works

According to Atkinson and Shiffrin (1971) information that is being maintained in short-term memory through rehearsal is gradually absorbed into long-term memory." Primacy effect is when a person can remember the items at the beginning of a series (for example, a list) than at the end of that series. Recency effect is when the person remembers the items at the end of that series better than the items at the beginning. Primacy effect can be the result of the words at the beginning of the list being rehearsed more often than those at the end. Recency effect reflects short-term storage.