I am still upset about Google Wave.

So ahead of its time! I have never understood why that got the axe, it took everything they where doing great at that time (chat, video, email, and the newish At the time G suite apps (called something else then) and just meshed them together in a surprisingly useful and pleasant way. Also the whiteboard features were really good particularly for it’s time.

This Mashable article does a good job explaining it in more detail[0]

I can’t believe it to this day they couldn’t figure it out. It was very ahead of its time

[0]https://mashable.com/2009/05/28/google-wave-guide/

There are no real barriers to blogging or using an RSS reader if you want to. (RSS feeds are less ubiquitous than they used to be but they're still common.) And, of course, for saving and sharing bookmarks, it's Pinboard that's buying del.icio.us.

I never really tried out Wave but Knol suffered from the problem you'd expect if everyone gets to write their own self-promotional competing article on a topic.

>There are no real barriers to blogging or using an RSS reader if you want to. (RSS feeds are less ubiquitous than they used to be but they're still common.)

I'm perfectly aware of this and have used RSS feeds on a daily basis for more than a decade, so I'm not sure what's being suggested here.

> but Knol suffered from the problem you'd expect if everyone gets to write their own self-promotional competing article on a topic

Now we have Quora, of course.