Links

Introduction to shortwave
Der Kurzwellenhörer (de) (1780 Hits) (Shortwave introduction by Franz Chvatal)
Introduction to DXing (en) (2865 Hits) (Marc Vissers introduction to DXing)
Kurze Einführung in die Kurzwelle (de) (2314 Hits) (Not a short, but an extensive introduction, also with notes about current shortwave receivers)
Leviathan's DXing Page (de) (1680 Hits) (Extensive introduction into shortwave)
Romanistik Erlangen: Kurzwelle (de) (1518 Hits) (Well made shortwave introduction with technical details)
Was ist Rundfunkfernempfang? (de) (1776 Hits) (Well made DXing starters page)

SW News
Das Medienmagazin: AM News (de) (1536 Hits) (The latest AM news from the "Medienmagazin" of Radio eins)
KWeinführung (de) (1764 Hits) (A little shortwave introduction)
Weltweiter Rundfunk: News (de) (1597 Hits) (AM news)

Info pages
Shortwave Pirates (en) (1616 Hits) (Nice page about not legal shortwave broadcasters)

Lists
Basel DX Daily Logbook (en) (1557 Hits) (up-to-date tropical band logs)
Danish Shortwave Club International SW Tips (en) (1745 Hits) (Bleeding edge shortwave loggings)
HFRadio.org: shortwave database (en) (2522 Hits) (Interactive frequency list for all current shortwave broadcasters)
The Latest Shortwave Loggings On The Net (en) (2222 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) (1722 Hits) (Infos about current and past shortwave stations and many QSL cards)
dxradio.de (de) (3274 Hits) (interesting pages of a longtime DXer)
Fenu-Radio (de) (2307 Hits) (Very interesting page of a fellow DXer with lots of information about receivers)
Kurzwelle Hören (de) (2049 Hits) (Bodo Kirtz' shortwave pages)
MarkDX (de) (1937 Hits) (a german "radio platform from the lower rhine")
Mein Hobby (de) (1905 Hits) (Shortwave- and Korea fan)
Ratzer.at - Informationen zum Kurzwellenhobby (de) (1980 Hits) (Homepage of Christoph Ratzer, who owns the german A-DX mailinglist. Very interesting test reports and current reception tips.)
Rinkersoft (de) (1615 Hits) (Alfred Ditzlers shortwave pages)