Ask HN: Tech News Weekly Roundup?

I need to get my compulsive tech news checking under control. Simply, I need to do a better job of turning off and focusing my attention.

Does anyone know of a weekly digest, or slow news for IT? A site I can go to or an email digest that's focused on quality and low throughput?

On the flip side, how do you get notified of major, just released vulnerabilities? Currently my primary source is Slashdot, HN, etc, but I assume there's some email service out there...

---Alex