Not much to say about this! I have a short list of not very seminal professional publications to my name, mostly connected with previous jobs in London. You can see it here. I've been a bit lazy since moving to Wales, apart from a few book reviews (my excuse was the distance learning degree I did at Aberystwyth, which took longer than expected due mainly to life intervening). Other than that, I've had the odd article, review and short story published in Welsh or Welsh-interest publications, but that has been sporadic and I haven't done much recently. This blog and another one at work (for our Special Collections) which I have begun to contribute to are publications, of course, and perhaps the practice will get me thinking again about whether there is anything else I could publish.
Publishing is one way to promote what you do, and if you are in the position of trying to establish yourself or build your career it is also a good move. If you've got something worthwhile to say and can add to the sum of human knowledge, do it!