The e-mail newsletter RF DesignLine has a series of articles in the last two issues on digital receiver design:

Part 1
Part 2
Part 3

The Scouting 100 Radio Award is awarded for contacting Scout stations during 2007, the Centenary year of Scouting. This is an International award, available to any operator - it is also available on a listener basis, with the same requirements as the operator award.
Objective:
To help celebrate the centenary of Scouting through the medium of radio. [...]

The 12/27/06 edition of the New York Times contains the article, “A Fading Signal.”.
Paul Saffo opines in his 12/16/06 journal entry:
It is tempting to conclude that the FCC’s action spells the end of Morse, but I am certain we will see a very different outcome. Freed from all pretense of practical relevance in an [...]

From the NARTE News, Winter 2007:
Cornell researchers have discovered that strong solar flares cause Global Positioning System (GPS) receivers to fail. Because solar flares are generally unpredictable, such failures could be devastating for “safety-of-life” GPS operations such as navigating passenger jets, stabilizing floating oil rigs and locating mobile phone distress calls.
“If you’re driving to the [...]

Don, KB9UMT, moderator and owner of the HamRadioHelpGroup mailing list came up with the following chart:
Year___ %Ham__US Population___# US Hams
1925___0.01%___115,829,000_____16,500
1930___0.02%___123,076,741_____19,000
1935___0.04%___127,250,232_____45,000
1940___0.04%___132,122,446_____55,788
1945___0.04%___139,928,165_____62,250
1950___0.05%___152,271,417_____81,450
1955___0.09%___165,931,202_____144,168
1960___0.13%___180,671,158_____227,500
1965___0.14%___194,302,963_____265,862
1966___0.14%___196,560,338_____268,129
1967___0.14%___198,712,056_____278,543
1968___0.14%___200,706,052_____275,628
1969___0.14%___202,676,946_____277,209
1970___0.14%___205,052,174_____279,658
1971___0.13%___207,660,677_____278,808
1972___0.13%___209,896,021_____274,389
1973___0.13%___211,908,788_____268,657
1974___0.13%___213,853,928_____271,373
1975___0.12%___215,973,199_____268,002
1976___0.13%___218,035,164_____283,473
1977___0.14%___220,239,425_____311,328
1978___0.16%___222,584,545_____350,780
1979___0.17%___225,055,487_____374,015
1980___0.17%___227,224,681_____393,353
1981___0.17%___229,465,714_____398,829
1982___0.18%___231,664,458_____408,361
1983___0.18%___233,791,994_____416,084
1984___0.18%___235,824,902_____433,921
1985___0.18%___237,923,795_____438,007
1986___0.18%___240,132,887_____433,921
1987___0.18%___242,288,918_____442,136
1988___0.19%___244,498,982_____455,642
1989___0.19%___246,819,230_____459,635
1990___0.19%___249,464,396_____466,511
1991___0.20%___252,153,092_____494,260
1992___0.21%___255,029,699_____524,782
1993___0.22%___257,782,608_____575,146
1994___0.24%___260,327,021_____614,398
1995___0.25%___262,803,276_____656,726
1996___0.25%___265,228,572_____661,775
1997___0.25%___267,783,607_____677,514
1998___0.25%___270,248,003_____676,809
1999___0.25%___272,690,813_____677,392
2000___0.25%___275,133,623_____682,240
2001___0.25%___275,279,000_____684,359
2002___0.25%___276,709,000_____685,308
2003___0.25%___278,112,000_____687,860
2004 672,622
2005 662,600
2006 654,291
Sources:

http://www.hamdata.com/fccinfo.html
http://www.ah0a.org/AH0A.html
http://www.ah0a.org/FCC/Licenses.html
http://hamcall.net/divisions_by_callsign.html
http://www.speroni.com/FCC/index.html
http://www.qrz.com/i/census.html?
http://www.jarl.or.jp/English/1_Amateur/A-1-9.htm

Don notes that the number of licensed amateurs has declined since 2003, and that the population of the U.S. has increased. If we use a figure of 300 million for the population [...]

I worked a guy down in GA a couple days ago, and we got to talking about a bunch of different things. It was such a good QSO that he asked me to e-mail him so that we could continue the discussion.
Well, as it turns out, one of his hot buttons was the Amateur Extra [...]

Jack, AB8RK, my partner in the Ann Arbor Hands-On Museum Project, is hot to get the Boy Scouts involved in amateur radio. This seemed a natural extension of the museum project, as they hold they have activities there frequently. Jack’s idea was to have a session at the museum that would guide scouts through the [...]

Last night, I almost worked W4ME, whose QSL would have looked great in my collection of QSLs from stations whose call signs spell words. He was working a W2 when I heard him. I waited until their QSO was over before trying to contact him, but he pulled the plug really quickly and never answered [...]

From the Science@NASA website:
Evidence is mounting: the next solar cycle is going to be a big one.
Solar cycle 24, due to peak in 2010 or 2011 “looks like its going to be one of the most intense cycles since record-keeping began almost 400 years ago,” says solar physicist David Hathaway of the Marshall Space [...]

On the HamRadioHelpGroup mailing list, Dan, KE7HLR writes:
I got tired of the ARRL’s 10-page text-mode Band Plan, so here’s my version of the HF Band Chart and Band Plan all on one handy page. I’ll update it again when the new 80m Automatic Data segment/Technician rules go into effect (probably late January/early February).