In part, I am in the greater process of building an online presence, and Hubpages allows me to use a free-standing article format (rather than a blog). Whereas I do write articles for various web sites and publications, I prefer the creative freedom to post my own... and to be able to edit the articles once published, if new information surfaces.
Thanks to the trackers available to us, I also find that Hubpages is a really useful venue to test the effectiveness of various social media approaches to publicity. I can create a unique tracking ID and almost in REAL TIME will I be able to tell where hits come from... and not.
If there is a "quest," I suppose it is to build a large enough article base to possibly assemble them into book format.