Here's a public feed for the DevRoadmaps Clarion blog:
You can create your own feeds as well using the Feed Builder:
By default all feeds created by Feed Builder use authentication. That's fine if you're a subscriber and you want your feed to include subscriber-only content. But if you're not a subscriber you need to make one small change to the URL Feed Builder creates. Just strip off the
&auth_Type=basic
parameter. Note that if you do remove authentication the feed will only contain publicly accessible content.