Here a few links that might be of interrest.

DX Propagation (click)
DX Propagation
The page of dr2w gives you a quick overview, which bands are operable.
Especially when dx-ing or searching whether a particular country can be contacted, this is very very helpful.

CW Trainer for Android mobile phone (click)
IZ2UUF has created a great application for Android phones.
It will do everything that many other applications can do too:
cw trainer for android
• Koch method
• Farnsworth Timing
• random character according to the set cooking level
• user-defined file (freely definable text e.g. standard QSO)
• randomly selected words (from user defined file)
• characters from a file specified by the user
• random groups
• Callsign (via a user defined file)
• abbreviations (via a user defined file)
• Q-groups (via a user defined file)
• any speed and pitch
and, and, and, and...
BUT it has a very special and fantastic feature: AUDIO output.
A human voice will tell you the sent characters after the morse signals - !
And what's that for?
You can go for a walk or drive a car or do whatever CW practice because you do not need to write down what you are hearing - everything is "read out".
I've been looking for an app like this for a long time.
Unfortunately it is not available for iPhone as far as I know.
Other training methods / ideas can be found in the section "Downloads" on this page.

CW - Learn CW Online (click)
Lear CW online
CW simply learn on the computer.
Everything the heart desires like
• training of groups of 5 (in practice nobody needs them)
• Q-groups and abbreviations (you need them all the time).
• Plain text, callsign and word training, Morse course (Koch method)
• MP3 exercise files (download)
• forum for discussions and questions
...and much more

CW Traing Files from the ARRL (click)
LogBook - feel free to download
Here you will find audio practice files at speeds of comfortable 5 wpm up to a massive 40 wpm. In each case the morse code is available as mp3 file and the corresponding text as a seperate file.
Several hundred files - whoever can do that is perfect in Morse code...

SSN = Side Swiper Net (click)
SideSwiperNet Logo
A MUST HAVE / JOIN for all who love handmade CW and perhaps already a prctizing cw with a Side Swiper or Cootie.
It's a great team and we meet regularly on air. No fear: Also straight / bug / elbug / ... keyers are welcome. Look, marvel, join in!

PodCast in HR Info (click)
PodCasi in HR-Info
"Kurz-Lang-Pause - the timeless elegance of Morse", that's the title of this beautifully made report on the topic cw. Nicely done and entertaining.
Please note: Unfortunately only available in German language.

Radio Traffic of the TITANIC, call MGY (click)
Titanic SOS
Probably the most famous radio communication in the world. With this catastrophe, beeing followed in the whole world, the breakthrough of radio communication began.
The radio communication begins with harmless telegrams, followed by desperate calls for help from the two Titanic radio operators Jack Phillips and Harold Bride. An impressive and harrowing reenactment in this video...

QRZ - the database
QRZ Logo
You did not get the address of your counterpart?
Not sure about the name nor QTH?
---> Here they are helped. hi hi

SDR - a list of most available servers
sdr Logo
SDR = Software Defined Radio
Listen to amateur radio over the Internet - on all continents.
Great for sniffing where there's action.

Morserino - an electronic keyer and cw trainer in one box
Tux Logo
A fantastic part:
• morse code trainer
• electronic key
• fun building (kit, simple level)
• integrated 432 MHz tranceiver = practice like in real life
• inexpensive

amateur radio and the Raspberry Pi
RaspberryPi Logo
In the "MagPi" Maganzin issue 80 (page 62 to 75) some exciting projects on the subject of amateur radio are shown. Of course all based on the Rasbery Pi:
ADS-B flight tracker (german)
WSPR transmitter (English)
Remote SDR scanner (English)
Digital voice hotspot (English)
Satellite tracking (English)

Everything you wanted to know about Ham Radio
About Ham Radio
Summary of the amateur radio of "HamSphere".
Many keywords are briefly explained. The spectrum ranges from "antennas" via CW to "SDR Transceivers".
Very well done, unfortunately only in English...

Amateur Radio Satellite via WebSDR in England
Ham Radio via Satellite
Web-SDR on the frequencies of the "Qatar-OSCAR 100"
Ham radio satellite. Not mine:
Too much technical gimmickry, I prefer a piece of wire and a Morse code.