Topband: Fish Net Beacons this AM

[bruce whitney]

Did anyone notice the apparent proliferation of fish net beacons this morning? I guess my noise level was low (-110dB) so I heard more than usual. Here is a partial listing from 1100Z 10/21/10:
1800 4OAK
1811 GX3E
1812 3H7
1927 YC5
1831 MB3
1832 V41
There probably were more but I couldn't wait for more to ID.
I guess for all you big guns out there with good receiving capability - this is just all old news? I heard almost no DX but the PJ - so does this mean these are not a good propagation indicator?
Bruce W8RA