Kmag, previously known as Knowledge, is a music magazine published in the UK that claimed to be "the biggest selling Drum and Bass magazine in the world." Its print edition, from 1994 to 2009, had international distribution and was called "authoritative" by the Toronto Star. It has published online-only content since 2009. The magazine's longtime editor is Colin Steven.

In addition to drum and bass, the magazine also regularly features reviews of dubstep, breakbeat and hip hop releases, and throughout its publication history has also regularly included cover CDs of mixes from guest DJs along with accompanying articles in the magazine. More infrequently, the cover disc has also included royalty free sample collections for use by producers, and even more occasionally featured compilations of unmixed tracks (as included on the magazine's 2004 10th Anniversary Edition cover disc, for example).

The magazine was subsequently rebranded as Kmag in 2007 after its then-publisher Vision Publishing declared bankruptcy. Nevertheless, it is still widely known as Knowledge, with even its own web site continuing to refer to the magazine by the former name.

The goal of the KDE Accessibility Project is to ensure that the KDE Software Compilation is accessible to all users, including those with physical handicaps. KDE accessibility software is bundled in the kdeaccessibility package.

Magazines, periodicals, glossies or serials are publications that are printed with ink on paper, generally published on a regular schedule and contain a variety of content. They are generally financed by advertising, by a purchase price, by pre-paid magazine subscriptions, or all three.

Magazines can be distributed through the mail; through sales by newsstands, bookstores or other vendors; or through free distribution at selected pick-up locations. Sales models for distribution fall into three main categories.

In this model, the magazine is sold to readers for a price, either on a per-issue basis or by subscription, where an annual fee or monthly price is paid and issues are sent by post to readers. Examples from the UK include Private Eye and PC Pro.

This means that there is no cover price and issues are given away, for example in street dispensers, airline in-flight magazines or included with other products or publications. An example from the UK and Australia is TNT Magazine.

This is the model used by "insider magazines" or industry-based publications distributed only to qualifying readers, often for free and determined by some form of survey. This latter model was widely used before the rise of the World Wide Web and is still employed by some titles. For example, in the United Kingdom, a number of computer-industry magazines, including Computer Weekly and Computing, and in finance, Waters Magazine.