This page lists the current categories used to classify the index. Each category name is followed by a brief description, including synonyms and related key words.

• art - arts, venues, museums, galleries, events and culture.
• blog - weblogs, online diaries and journals.
• business - business, industry, trade and commerce.
• computer - computers, information technology (IT), local area networks (LANs), accessories, automated systems.
• consumer - general consumer products and services.
• directory - directories, indexes and listings.
• education - education, academic or research institutions, schools, training centres, universities, junior colleges, polytechnics, private colleges, kindergartens and childcare centres.
• entertainment - general entertainment, games and gadgets, video and audio equipment, music and instruments, tv and radio media, plays and concerts, movies, cinemas, theatres as well as other venues.
• finance - finance, stock market, trading and brokers, investment firms and wealth-management.
• food - food, cuisine, restaurants, fast-food outlets, food courts, hawker centres.
• forum - online forums, bulletin boards, chatrooms.
• gallery - online gallery of images, photos, or videos.
• guide - guides to specific areas of interest, topics or knowlege domains.
• hardware-IT - computer hardware, telecommunication equipment, electronic gadgets, PDAs, notebooks, portable devices.
• hardware-non-IT - general hardware, non-IT, mechanical tools, construction materials.
• health - health information, health guides, medical issues, pharmaceuticals, public health announcements, nutrition, food, hospitals, doctors, nursing, clinics.
• hotel - hotels, services apartments, budget hotels, backpacker motels and lodges, and other accommodation.
• industrial - manufacturers, industrial contractors, engineering products and services.
• internet - Internet technologies, services and providers.
• law - law, legal firms and practices, legal aid and information resources.
• map - online maps, street directories.
• marketing - marketing, promotions, communications, advertising, sales and distribution.
• movie - movies, films, cinemas and video.
• music - music, songs, musical instruments, audio players and equipment.
• nature - nature, parks, gardening and horticulture.
• news - news, online newspapers, press and media.
• organization - government organizations, non-governmental organizations (NGOs), non-profit, not-for-profit, charities, special interest groups (SIGs), associations, societies and clubs.
• personal - individual (personal) websites (for personals or friendship sites - see 'social').
• photos - photo/image galleries, photography, photographic equipment, photographers.
• politics - politics, political parties, civic societies, political commentary.
• property - property developers, agents, condominiums (condos), residences, serviced apartments, accommodation, flats, real estate, HDB rental and sales, private houses and landed properties.
• public - public services and information, statutory boards, government departments and the public sector, general resources.
• religion - religions, spiritual or religious themed sites, churches, temples, mosques.
• services - general services (more specific services are under 'engineering', 'social', 'public', 'education' and others)
• shopping - e-commerce, online shopping sites, retail malls and shops.
• social - social groups, dating/friends-making, match-makers, match-making agencies, adventure and sports clubs.
• software - computer software, electronic applications.
• sports - sports vendors, venues, adventure activities, sports equipment, national sports associations (NSAs).
• tech - technology and science.
• telecom - telecommunications, services, equipment, telcos, internet access providers (ISPs), voice/mobile operators, handphones.
• transport - transportation modes, buses, MRTs, trains, subways, ferries, couriers, deliveries, automotive, cars, motor cycles, bicycles, bikes.
• travel - travel information, travel guides, tourist attractions, tourist agencies, travel agents, airlines, budget airfares.
• work - jobs, part-time work, temporary work, permanent work, employment, recruitment.
• zine - magazines and online magazines (e-zines).