Sadly, several years ago (around 2011, I think), I began to notice that there was very little activity on the site. I began to make inquiries, and sent the JPS Facebook Page a message, asking if Tagged Tanakh was still a thing. They informed me that they were discontinuing the site. However, the website remained on the Internet for several years; just as recently as a few days ago, one could look up passages in the Tanakh, and comment on things (even though there was almost no one else using the site). Today, though, I tried to login to Tagged Tanakh, and I got a 404 Error message. So, apparently, after all these years, someone finally decided to kill the project for good.
The good news is this: a few years ago, when I was making inquiries into the status of Tagged Tanakh, I got an email back from one of the people who had been involved in creating the site, and he informed me about a newer website called Sefaria.org, that was somewhat similar to the concept of Tagged Tanakh. When I first checked out Sefaria, the main down side of that site was that they only had the rights to use the old 1917 version of the JPS Holy Scriptures, but they recently were given the rights to the 1985 JPS Tanakh, and they have many other classic Jewish texts on their site as well.
So anyway, I'm kind of sad that Tagged Tanakh is no more, but it was fun while it lasted. And at least I've got Sefaria to keep me busy, if I want to study the Hebrew Bible.