Links

Introduction to shortwave
Der Kurzwellenhörer (de) (1720 Hits) (Shortwave introduction by Franz Chvatal)
Introduction to DXing (en) (2811 Hits) (Marc Vissers introduction to DXing)
Kurze Einführung in die Kurzwelle (de) (2249 Hits) (Not a short, but an extensive introduction, also with notes about current shortwave receivers)
Leviathan's DXing Page (de) (1637 Hits) (Extensive introduction into shortwave)
Romanistik Erlangen: Kurzwelle (de) (1477 Hits) (Well made shortwave introduction with technical details)
Was ist Rundfunkfernempfang? (de) (1727 Hits) (Well made DXing starters page)

SW News
Das Medienmagazin: AM News (de) (1495 Hits) (The latest AM news from the "Medienmagazin" of Radio eins)
KWeinführung (de) (1711 Hits) (A little shortwave introduction)
Weltweiter Rundfunk: News (de) (1546 Hits) (AM news)

Info pages
Shortwave Pirates (en) (1568 Hits) (Nice page about not legal shortwave broadcasters)

Lists
Basel DX Daily Logbook (en) (1510 Hits) (up-to-date tropical band logs)
Danish Shortwave Club International SW Tips (en) (1702 Hits) (Bleeding edge shortwave loggings)
HFRadio.org: shortwave database (en) (2449 Hits) (Interactive frequency list for all current shortwave broadcasters)
The Latest Shortwave Loggings On The Net (en) (2174 Hits) (Very interesting and recent shortwave logs from the UK)

private pages of DXers
The World on Shortwave (de) (en) (0 Hits) (complete private page, even with historic logbook)
DX-Seite Rudolf Sonntag (de) (1677 Hits) (Infos about current and past shortwave stations and many QSL cards)
dxradio.de (de) (3219 Hits) (interesting pages of a longtime DXer)
Fenu-Radio (de) (2229 Hits) (Very interesting page of a fellow DXer with lots of information about receivers)
Kurzwelle Hören (de) (1997 Hits) (Bodo Kirtz' shortwave pages)
MarkDX (de) (1892 Hits) (a german "radio platform from the lower rhine")
Mein Hobby (de) (1861 Hits) (Shortwave- and Korea fan)
Ratzer.at - Informationen zum Kurzwellenhobby (de) (1927 Hits) (Homepage of Christoph Ratzer, who owns the german A-DX mailinglist. Very interesting test reports and current reception tips.)
Rinkersoft (de) (1561 Hits) (Alfred Ditzlers shortwave pages)