Dungeon 151 was the first issue published solely via the web after Wizards of the Coast assumed control of the magazine from Paizo in October 2007. It contained five articles released online in that month:
-Iggwilv's Legacy: The Lost Caverns of Tsojcanth, an adventure released as a separate pdf document
-Hell's Heart, an adventure released as a separate pdf document
-Dungeoncraft: It's Never Too Early, an article published only as a web page
-Save My Game: I'm Stephen. I Solve Problems, game advice published only as a web page
-Maps of Mystery: Delver's Dale, a map published only as a web page
The articles were never collected into a single document. Some are still available online.
Because this "issue" was never collected into a single document, the individual articles must be accessed separately. The "Versions" shown below reflect this: they include two pdf versions (for the two adventures) and an HTML version (for the three web pages). The latter can still be found online as of March 2011; see the web links below.
Note as well that no production staff are credited for the work here.