Etsy has several ways of posting items for sale - mostly, it centers around 'view more recent items' type display concepts where the shopper can see what's been added to the site (new images, new pieces, sales, new stores)
10 other similar sites that are similar to the Etsy concept. Also - Amazon (store - it's low cost to actually have your own Amazon store). Ioffer and Ebay (stores). Now, Ebay's just not all that great because people want stuff for cheap.
If she wants to do blogging (which is smart because they're free websites) Then consider some or all of the advice here:
there are 6 main sites that every e-commerce individual should keep up with. These six, when connected together in the right way, will end up being easy-maintenance and struggle free to update. Now - that article is written 'for writers' but :shrug: There's no reason why that advise can't apply to ANYONE who wants to do online business. . .just don't worry about Goodreads, that's strictly for people to review books. (But heck, if she reads - that can access some potential customers if she actively reviews books. Never put anything out of the realm of possibilities.)
And of course - if she starts to sell (congratulations are in order, because it's harder than you think!) then she can put that money into getting a website through Godaddy or something similar - Godaddy (and others) will usually charge your fees for a whole 1, 2, 5 or 10 years upfront. One time painful prick and done. They have easy to use things like shopping carts that can be used in tandem with their Website Builder.
I just signed up for a website of my own (it's not up yet) through Godaddy - It cost me less than $100.00 to secure 2 years: my domain name, Website Builder, hosting, an email account, and an option shopping cart if/when I need it.