GRADUATING from medical school, making partner at his health center and raising a close-knit family — sometimes it's just not enough for Dr. Enoch Choi of Palo Alto.

Choi, an urgent care physician who is active in his church, sings in a gospel choir and volunteers for the Parents' Club of Palo Alto and Menlo Park, feels a need to share more of himself. It's an urge he satisfies each day by writing his own blog.

A blog may sound like jargon-y mystery word — a cross between blob and frog, maybe — but it's nothing more than a contraction of the words Web and log. (Web + log = blog. Get it?).

Blogs take many forms, including the genre Choi practices, medical blogging.

To confuse and contract the terminology further, health care workers who blog call themselves med bloggers.

Choi posts his online journal, Med Musings, at his Web site http://www.enochchoi.com for the daily perusal of about 50 or so friends and another 400 to 500 strangers who regularly drop by to see what's on the doctor's mind. Choi likens his blog to an opt-in e-mail service.

When visiting med blogs, it's not always clear where the doctor or health care worker is located geographically. But Bay Area bloggers seem to find each other. Choi, for instance, also contributes to a locally-grown blog called Medgadget.com. Other Bay Area-based med blogs focus on the day-to-day experiences of nurses. And a Sunnyvale-based blog,