On Everyday Narcissism; a blog post about narcissism by a psychotherapist blogger I like.
[ETA] And here's probably the most relevant clip from that link:
As with most psychological phenomena, I believe it makes sense to talk about narcissism along a spectrum: in other words, the grandiosity and need for admiration characteristic of pathological narcissism form a milder, less dominant part of primary narcissism (Heinz Kohut has a lot to say on this subject, in case you’re interested). To a certain extent, the desire to be noticed, admired and respected by others is a type of narcissism, an everyday narcissism that doesn’t interfere with our ability to notice, admire and respect other people, and to have meaningful relationships with them. Only when that desire eclipses everything else do we enter the territory of pathological narcissism and narcissistic personality disorder.