Google Groups no longer supports new Usenet posts or subscriptions.

[Indira]

https://groups.google.com/g/comp.mobile.ipad
Google Groups no longer supports new Usenet posts or subscriptions.
Historical content remains viewable.

An updated web-searchable no-login web-search archive that reports a unique
URL will need to be located that allows people to search before posting to
the c.m.i. newsgroup & which allows unique references to recent articles.

[sobriquet]

Post by Indira
https://groups.google.com/g/comp.mobile.ipad
Google Groups no longer supports new Usenet posts or subscriptions.
Historical content remains viewable.
An updated web-searchable no-login web-search archive that reports a unique
URL will need to be located that allows people to search before posting to
the c.m.i. newsgroup & which allows unique references to recent articles.

How long will this historical content remain viewable?

Are there any good alternatives for google groups that allow one to
search an up to date archive of usenet?

https://archive.org/details/usenethistorical

This one doesn't seem to work reliably:

https://www.usenetarchives.com/