NetVibes works now, just paste https://www.themaven.net/mishtalk (rather than the long URL above) and it will "discover" the feed.
Works well with NewsBlur
I too have issues trying to get this working in Netvibes.
I use Netvibes too. Any way to get the RSS feed working there? Thanks.
Mike Mish Shedlock
Will pass the Netvibes issue to Maven Support