del.icio.us is still up, albeit with a "note secure" warning [0].
"""
My name is Maciej Ceglowski. I bought what remains of this site in 2017 for about the price of a Volkswagen. I got that money from running a paid clone of del.icio.us called Pinboard.
Every time I send someone a topical/relevant link for a discussion or project I'm involved with, people always ask "How do you find this stuff?". I mention that it's primarily reading great Hacker News posts or tweets and just saving it over time.
Maciej's blog is also particularly entertaining including both funny technical and non-technical posts.
I'm a longtime Pinboard user but it has some annoying quirks. The biggest weakness for me is the limited search. e.g. Yesterday I was trying to find my kids' school menu site and searched for "menu"... nothing. Turns out I did have it bookmarked, but the title is "Menus and Pricing". So you have to search for "menus" to find it. I've made suggestions to the developer on stuff like this over the years but it hasn't improved much.
"""
My name is Maciej Ceglowski. I bought what remains of this site in 2017 for about the price of a Volkswagen. I got that money from running a paid clone of del.icio.us called Pinboard.
"""
[0] https://del.icio.us/help