UPDATE II (2008/06/04 – 12:53EST): An anonymous reader commented that the reason was due to a large outage at a service provider, which coincides with the traceroute.

UPDATE I (2008/06/04 – 07:25EST): P2PNet is back up. No reason as to the downtime. Must have been a network glitch I guess. When these things happen, I wonder if it is due to the controversial nature of the sites.
—————————-
Looks like p2pnet.net is completely down. I tried going to an article there this morning and it timed out.
Traceroute shows:
……
5 POS5-0.PEERA-CHCGIL.IP.GROUPTELECOM.NET (66.59.191.106) 14.950 ms 14.934 m s 14.911 ms
6 ge-1-7.r01.chcgil09.us.bb.gin.ntt.net (129.250.12.145) 18.847 ms 18.096 ms 18.057 ms
7 xe-0-1-0.r21.chcgil09.us.bb.gin.ntt.net (129.250.3.13) 19.018 ms 18.403 ms 18.380 ms
8 p64-2-2-0.r21.dllstx09.us.bb.gin.ntt.net (129.250.2.22) 42.074 ms 41.378 m s 41.359 ms
9 po-2.r02.dllstx09.us.bb.gin.ntt.net (129.250.2.174) 41.815 ms * *
10 xe-4-4.r03.dllstx09.us.ce.gin.ntt.net (157.238.225.6) 39.827 ms 40.671 ms 40.405 ms
11 et1-1.dsr01.hstntx2.theplanet.com (70.87.253.50) 46.372 ms 46.912 ms 47.4 02 ms
12 * * *

DNS is up, but it appears server used for web and mail is down:
<> DiG 9.5.0a6 <> mx p2pnet.net.
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 21615
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 3

;; QUESTION SECTION:
;p2pnet.net. IN MX

;; ANSWER SECTION:
p2pnet.net. 85981 IN MX 10 mail.p2pnet.net.

;; AUTHORITY SECTION:
p2pnet.net. 47234 IN NS ns2.rackspace.com.
p2pnet.net. 47234 IN NS ns.rackspace.com.

;; ADDITIONAL SECTION:
mail.p2pnet.net. 85981 IN A 207.44.164.50
ns.rackspace.com. 125281 IN A 69.20.95.4
ns2.rackspace.com. 125281 IN A 65.61.188.4

;; Query time: 1 msec
;; SERVER: 216.240.1.1#53(216.240.1.1)
;; WHEN: Tue Jun 3 09:54:27 2008
;; MSG SIZE rcvd: 145

;; QUESTION SECTION:
;www.p2pnet.net. IN A

;; ANSWER SECTION:
www.p2pnet.net. 85797 IN CNAME p2pnet.net.
p2pnet.net. 47136 IN A 207.44.164.50

;; AUTHORITY SECTION:
p2pnet.net. 47136 IN NS ns2.rackspace.com.
p2pnet.net. 47136 IN NS ns.rackspace.com.

;; ADDITIONAL SECTION:
ns.rackspace.com. 125183 IN A 69.20.95.4
ns2.rackspace.com. 125183 IN A 65.61.188.4

;; Query time: 1 msec
;; SERVER: 216.240.1.1#53(216.240.1.1)
;; WHEN: Tue Jun 3 09:56:04 2008
;; MSG SIZE rcvd: 142

Sending requests to their server 207.44.164.50 which does both web and email gives no response. Wonder if it was shutdown at month end?

-mike.