Links

Introduction to shortwave
Der Kurzwellenhörer (de) (1878 Hits) (Shortwave introduction by Franz Chvatal)
Introduction to DXing (en) (2967 Hits) (Marc Vissers introduction to DXing)
Kurze Einführung in die Kurzwelle (de) (2443 Hits) (Not a short, but an extensive introduction, also with notes about current shortwave receivers)
Leviathan's DXing Page (de) (1768 Hits) (Extensive introduction into shortwave)
Romanistik Erlangen: Kurzwelle (de) (1604 Hits) (Well made shortwave introduction with technical details)
Was ist Rundfunkfernempfang? (de) (1862 Hits) (Well made DXing starters page)

SW News
Das Medienmagazin: AM News (de) (1620 Hits) (The latest AM news from the "Medienmagazin" of Radio eins)
KWeinführung (de) (1860 Hits) (A little shortwave introduction)
Weltweiter Rundfunk: News (de) (1688 Hits) (AM news)

Info pages
Shortwave Pirates (en) (1702 Hits) (Nice page about not legal shortwave broadcasters)

Lists
Basel DX Daily Logbook (en) (1644 Hits) (up-to-date tropical band logs)
Danish Shortwave Club International SW Tips (en) (1829 Hits) (Bleeding edge shortwave loggings)
HFRadio.org: shortwave database (en) (2667 Hits) (Interactive frequency list for all current shortwave broadcasters)
The Latest Shortwave Loggings On The Net (en) (2318 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) (1818 Hits) (Infos about current and past shortwave stations and many QSL cards)
dxradio.de (de) (3418 Hits) (interesting pages of a longtime DXer)
Fenu-Radio (de) (2460 Hits) (Very interesting page of a fellow DXer with lots of information about receivers)
Kurzwelle Hören (de) (2138 Hits) (Bodo Kirtz' shortwave pages)
MarkDX (de) (2079 Hits) (a german "radio platform from the lower rhine")
Mein Hobby (de) (2000 Hits) (Shortwave- and Korea fan)
Ratzer.at - Informationen zum Kurzwellenhobby (de) (2056 Hits) (Homepage of Christoph Ratzer, who owns the german A-DX mailinglist. Very interesting test reports and current reception tips.)
Rinkersoft (de) (1696 Hits) (Alfred Ditzlers shortwave pages)