The Adult/Sexually Explicit category includes:

• Sites displaying full or partial nudity in a sexual context or sites that display nude or seminude human forms, singly or in groups
• Sites showing or that describe graphically sexual acts or activity, including sites providing direct links to such sites

The Advertisement category includes:

• Sites providing graphics for advertising or other ad content files
  

The Arts & Entertainment category includes:

• Sites that promote or provide information about motion pictures, books, humor, magazines and non-news radio and television
• Sites whose purpose is the display of artworks, including sites sponsored by museums, galleries, theatres, libraries, and similar institutions

The Chat category includes:

• Sites that enable instant messaging or host Web chat services including those that support or provide information about chat over HTTP or IRC
  

The Computing & Internet category includes:

• Sites providing information about computers, software, the Internet, and related business firms, including those that support the sales of hardware, software, peripherals, and services
• Sites providing information for free downloadable tools for computer security
• Sites where personal files are stored on Internet servers for backup or exchange purposes, including sites whose main purpose is to provide freeware and software downloads
• Sites that pay users to view Websites, advertisements, or email

The Criminal Skills category includes:

• Sites promoting or providing instruction in nonviolent crime, avoidance of prosecution or unethical or dishonest behavior

The Drugs, Alcohol & Tobacco category includes:

• Sites that provide information about, or promote, the use of prohibited drugs, or the abuse or unsanctioned use of controlled or regulated drugs including the cultivation, preparation, or use of marijuana. Also, parphernalia associated with such use or abuse
• Sites providing information about, or promoting, the sale of alcoholic beverages or tobacco products or associated paraphernalia

The Education category includes:

• Sites sponsored by schools and other educational facilities, by non-academic research institutions, or that relate to educational events and activities
• Sites providing information about or that sell or provide curriculum materials or direct instruction; also, learned journals and similar publications

The Finance & Investment category includes:

• Sites offereing news and quotations on stocks, bonds, and other investment vehicles, investment advice, but not online trading. Includes banks, credit unions, credit cards, and insurance
• Sites supporting active trading of securities and management of investments

The Food & Drink category includes:

• Sites that list, review, advertise, or promote food, dining, or catereing services
  

The Gambling category includes:

• Sites providing information about, or that promote, gambling or support online gambling, where there is a risk of losing money

The Games category includes:

• Sites providing information about, or promoting, role-playing games, electronic games, video games, computer games, or online games. Includes giveaways and sweepstakes

The Glamour & Intimate Apparel category includes:

• Sites displaying images of models in suggestive but not lewd costume, with semi nudity. This includes calendar, and pinup art, and photography and sites offereing lingerie or swimwear for sale
  

The Government & Politics category includes:

• Sites sponsored by branches, bureaus, or agencies of any level or government, including agencies of the armed services
• Sites sponsored by or providing information about political and interest groups focused on elections or legslation

The Hacking category includes:

• Sites providing information about, or that promote, illegal or questionable access to or use of computer or communication equipment, software, or databases

The Hate category includes:

• Sites that promote the identification of radical groups, the denigration or subjection of groups, or the superiority of any group. Including sites that advocate antigovernment beliefs or action
• Sites where the content is gratuitously offensive or shocking, but not violent or frightening. This includes sites devoted in someway to scatology and similar topics or to improper language, humor, or behavior

The Health & Medicine category includes:

• Sites providing information or advice on personal health or medical services, procedures, or devices, and approved drugs and their medical use. Includes self-help groups
• Sites providing information about, or that promoting, the sale or use of none regulated chemicals such as naturally occurring compounds

The Hobbies category includes:

• Sites providing information about, or that promote, private and largely sedentary pastimes, but not electronic, video, or online games
  

The Hosting Sites category includes:

• Sites that provide hosting services, or top-level domain pages or Web communities
  

The Job Search & Career Development category includes:

• Sites providing information about seeking of employment or employees
  

The Lifestyle & Culture category includes:

• Sites providing information about matters of daily life, excluding entertainment, health, hobbies, jobs, sex, and sports
• Sites providing information about, or that cater to, gay, lesbian or bisexual lifestyles, including those that support online shopping, but excluding those that are sexually or issue-oriented
  

The Motor Vehicle category includes:

• Sites providing information or promote vehicles incuding those that allow online purchase of vehicles or parts
  

The News category includes:

• Sites providing current news and opinion, including those sponsored by newspapers, general-circulation magazines, or other media including online equivalents of tabloids and other fringe publications
  

The Personals & Dating category includes:

• Sites assisting users in establishing interpersonal relationships, but excluding those intended to arrange for sexual encounters and also excluding those exclusively gay or lesbian or bisexual interest

The Personal websites category includes:

• Social networking sites and sites chiefly devoted to personal expression by individuals (as in diaries or personal blogs) or small groups, often but not necessarily involving multiple links to similar sites.

The Real Estate category includes:

• Sites providing information about renting, buying, selling, or financing residential real estate
  

The Reference category includes:

• Sites offering reference content such as atlases, dictionaries, encyclopedias, formularies, white and yellow pages, and public statistical data
  

The Religion category includes:

• Sites providing information about or promote Buddhism, Bahai, Christianity, Christian Science, Hinduism, Islam, Judaism, Mormonism, Shinto, and Sikhism, as well as atheism
• Sites providing information about or promote religions not specified in Traditional Religions or other unconventional, cultic, or folkloric belief and practices
  

The Remote Proxies category includes:

• Sites providing information about how the bypass proxy server features or to gain access to URLs in any way that bypasses the proxy server or sites that offer online translation of URLs in a way that might bypass certain proxy servers, potentially allowing unauthorized access
• Sites providing client software to enable peer-to-peer file sharing and transfer
  

The Sex Education category includes:

• Sites providing information about sex and sexuality, with no pornographic intent

The Search Engines category includes:

• Sites providing facilities for searching the Web, news groups, or indicies or directories

The Shopping category includes:

• Sites that support the online purchase of consumer goods and services except: sexual materials, lingerie, swimwear, investments, medications, educational materials, computer software or hardware, alcohol, tobacco, travel, vehicles and parts, weapons
• Sites that support that offering and purchasing of goods between individuals
  

The Sports category includes:

• Sites providing information about or promoting active games and recreation. This includes sites providing information about or directories of gun clubs and similar groups, including war-game and paintball facilities
  

The Streaming Media category includes:

• Sites that primarily provide streaming media content, such as movie trailers, radio or TV programming on the Internet
• Sites that enable users to make telephone calls via the Interent or to obtain information or software for that purpose
• Sites that support downloading of MP3 or other sound files or other sound files or that serve as directories of such sites
  

The Travel category includes:

• Sites promoting or providing information about tavel-related services and destinations
  

The Usernet News/Forums category includes:

• Sites for online personal and business clubs, discussion groups, message boards, and list servers; includes 'blogs' and 'mail magazines.'
  

The Violence/Offensive category includes:

• Sites encourage or feature violence or bodily harm, including self-inflicted harm or that gratuitously display images of death, gore, or injury; or that feature images or descriptions that are grotesque or frightening and of no redeeming value

The Weapons category includes:

• Sites providing information about, or that promote/support the sale of weapons and related items

The Web-based email category includes:

• Web-based email hosting sites
  

The Business & Economy category includes:

• Sites devoted to or sponsored by business associations, business firms, industry groups, or business in general