Question: HM and Help!, are which type of media?

Context paragraphs:
Financial Sanctions Unit: The Financial Sanctions Unit of the Bank of England formerly administered financial sanctions in the United Kingdom on behalf of HM Treasury.  It was in operation since before 1993, when it applied sanctions against the Government of Libya.  More recently, since Libya became an ally of the United Kingdom, sanctions have been applied against those who allegedly fought against the Government of Libya at the time it was not an ally (see Incidents which have involved the Financial Sanctions Unit).  Responsibility for the administration of Financial Sanctions in the UK transferred from the Bank of England to HM Treasury on 24 October 2007.  In April 2016 HM Treasury set up the Office of Financial Sanctions Implementation, a new body whose mission is to "provide a high-quality service to the private sector, working closely with law enforcement to help ensure that financial sanctions are properly understood, implemented and enforced."

HM (magazine): HM Magazine is a monthly, digital and print on demand publication focusing on hard music and alternative culture of interest to Christians.  The magazine states that its goal is to "honestly and accurately cover the current state of hard music and alternative culture from a faith-based perspective."  It is known for being one of the first magazines dedicated to covering Christian metal.  The magazine's content includes features; news; album, live show and book reviews, culture coverage and columns.  HM's occasional "So and So Says" feature is known for getting into artists' deeper thoughts on Jesus Christ, spirituality, politics and other controversial topics.

Spårakoff: Spårakoff is a HM V type tram converted into a bar in Helsinki, Finland.  It is one of the four HM V trams that remain operational.  Two are museum trams, and one is used as a non-passenger carrying advertisement tram.

International Finance Facility: The concept of an International Finance Facility (IFF) first was proposed by HM Treasury in conjunction with the Department for International Development of the United Kingdom.  An IFF is designed to frontload aid to help meet the Millennium Development Goals.  Bonds are issued on global capital markets, against the security of government guarantees to maintain future aid flows, which would be used to buy back the bonds over a longer period.  This allows a large amount of aid to flow soon, at the expense of less aid in the future.  Critics have raised concerns that the poorest countries in particular don't have the ability to efficiently spend such large amounts of aid (whilst avoiding corruption), and that their economies may not be able to cope with such rapid change either.

Help! (magazine): Help!  is an American satire magazine published by James Warren from 1960 to 1965.  It was Harvey Kurtzman's longest-running magazine project after leaving "Mad" and EC Publications, and during its five years of operation it was chronically underfunded, yet innovative.

Mass media in Canada: The term mass media refers to any means or technology used to communicate a message to large groups of people.  Popular forms of mass media include television, the Internet, and newspapers.  Mass media are specifically intended to reach larger audiences.  The term is often divided into two broad categories: that of electronic mass media and that of print mass media.  Electronic mass media require their audiences to interact with electronics in order to receive the message.  They attempt to recreate or represent a message through moving pictures and/or sound.  Four common examples of electronic media used in Canadian society are television, radio, films, and the Internet.  Print mass media, on the other hand, refers to any media that is distributed to audiences in a printed form, on paper.  Examples of this include newspapers, printed books, and magazines.  The mass media model in Canada is different from the mass media model of the United States as well as the rest of the world.  According to John A. Irving, mass media functions differently in Canadian society because of a lack of collective identity; this is in reference to Canada's languages (and related cultures) as well as its proximity to the United States.  Irving states that such cultural dualism means that only some of the population responds to the mass media in English, while the other portion remain uninfluenced by English-based media.  In terms of the proximity to the United States, he explains that "most of the difficulties that threaten the mass media in Canada are the direct outcome of American economic and cultural imperialism."  Because of the United States' overwhelming influence on Canadian mass media, Canada has not been able to form its own identity in the media.  These two factors have slowed down the process of the creation of a Canadian community.  Mass media help in forming a community through communication.  When a large group of people is in communication with one another through media, an identifiable culture is formed.  Individuals in dialectic experience a sense of membership and collective identity.

Seized! The Border and Customs uncovered: Seized!  The Border and Customs uncovered is the Border Force National Museum (previously - UK Border Agency), located in Liverpool, England and holds the national collection of HM Revenue and Customs, one of the most important collections of its type held anywhere in the world.  Originally HM Customs & Excise National Museum, the collection is now a gallery located on the basement floor of the Merseyside Maritime Museum at the Albert Dock.

Hindley–Milner type system: In type theory and functional programming, Hindley–Milner (HM), also known as Damas–Milner or Damas–Hindley–Milner, is a classical type system for the lambda calculus with parametric polymorphism, first described by J. Roger Hindley and later rediscovered by Robin Milner.  Luis Damas contributed a close formal analysis and proof of the method in his PhD thesis.

The Complete Plain Words: The Complete Plain Words, titled simply Plain Words in its 2014 revision, is a style guide written by Sir Ernest Gowers, published in 1954.  It has never been out of print.  It comprises expanded and revised versions of two pamphlets that he wrote at the request of HM Treasury, "Plain Words" (1948) and "ABC of Plain Words" (1951).  The aim of the book is to help officials in their use of English as a tool of their trade.  To keep the work relevant for readers in subsequent decades it has been revised by Sir Bruce Fraser in 1973, by Sidney Greenbaum and Janet Whitcut in 1986, and by the original author's great-granddaughter Rebecca Gowers in 2014.

World Scout Foundation: The World Scout Foundation (WSF) is an international non-profit institution based in Geneva, Switzerland funded in 1969, but reorganized in the current form in 1977.  The stated mission of the organization is to develop World Scouting by the provision of financial and other support to help develop the World Scout Movement through the World Organization of the Scout Movement (WOSM).  The Honorary President is HM Carl XVI Gustaf, King of Sweden who actively participates in the activities of the foundation.

Supporting paragraphs: HM (magazine) Help! (magazine)
Answer: magazine