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Browse digitized texts, images, archives and cataloged cultural materials.
Richard Nakka's Experimental Rocketry Web Site shares experiences, ideas and technical details of amateur experimental rocketry, where rockets and their motors are built from scratch. It includes the author's notes, flight logs and photographs, plus work by others. The site was originally posted in July 1997 and a 2026 downloadable version is offered for purchase.
NanoReview is a platform for comparing laptops, smartphones, CPUs, and other tech devices. It collects specifications and test results in one place and provides comparisons and rankings of processors, smartphones, laptops, GPUs, and tablets. The site also accepts crowdsourced benchmark results and user comments.
Find and access geology and palaeontology research data, with indexed datasets.
Find digitized publications and collection items through an online library.
National Research Nuclear University MEPhI is a Moscow-based university with institutes covering nuclear physics and engineering, cyber intelligence systems, laser and plasma technologies, and nanoengineering. It lists academic programmes including BA, specialist, MSc and PhD, plus dual degree programmes and preparatory training for international applicants.
NationsEncyclopedia is a reference site providing detailed profiles of the world's countries, organized by continent and alphabetically. It covers each country's population, history, ethnic groups, culture, language, transportation, government structure and technology, plus national economies. It also includes material on the United Nations, its agencies and World Leaders.
nbshare.io is a platform for learning data analytics using Python and R. It hosts a collection of notebooks covering topics including artificial intelligence, machine learning, basic Python coding, data analytics, web scraping and other related technical subjects.
NConfig is a developer community or publication for programming discussions, news, tutorials, and help.
neko (stylized as n.eko) is a self-hosted virtual browser that runs in Docker using WebRTC technology. It supports use cases including watch parties, interactive presentations, collaborative work, teaching, content embedding, automated browsing, ultra-low-latency streaming, multi-participant control, and live broadcasting.
NeoGeoFun is a website for playing retro SNK Neo Geo games online in a web browser using flash technology with no download required. It lists titles such as Andro Dunos and Art of Fighting, and its help page describes keyboard controls, fullscreen, sound muting, pause, and save and load options.
neonrvm is an open-source machine learning library for performing regression tasks using the Relevance Vector Machine (RVM) technique. It is written in Python and available on GitHub. The library aims to provide efficient implementations for RVM-based regression.
NerdyData is a search engine for website source code and technographic data. It crawls millions of live domains, fully rendering pages including JavaScript, and indexes the resulting source code, cookies, headers and network requests. Users can search for sites using specific technologies, scripts, HTML patterns, cookie names or HTTP headers. The platform supports sales prospecting, market sizing, competitive tracking and security research, and provides API access, a browser extension, Gmail add-on and MCP integration for AI assistants.
Netlas.io is an internet intelligence platform that provides accurate technical information on IP addresses, domain names, websites, web applications, IoT devices, and other online assets. It supports discovery, research, and monitoring of online assets.
The Network Repository is the first interactive network dataset repository, offering real-time interactive graph visualization and analytics for network datasets. It hosts a wide range of network datasets organized into categories including miscellaneous networks, cheminformatics, animal social networks, social networks, power networks, labeled networks, dynamic networks, technological networks, brain networks and other specialized network types.
The New Mexico Institute of Mining and Technology, known as New Mexico Tech, is devoted to education and research with no artificial distinction between pure and applied research. It offers undergraduate and graduate programs in fields including biology, engineering, computer science and physics, and is test optional with a 3.0 GPA or higher.
Newgrounds Auditorium is an archive of Flash animations from Newgrounds.com, built using the Flashpoint technology layer. It contains a collection of 131,000 Flash animations. The archive is offered in two versions: Ultimate, which includes all animations and thumbnails for offline use, and Infinity, which downloads animations on demand. The Ultimate version uses an older launcher, while the Infinity version includes a newer launcher that fixes a bug related to viewing lower entries in lists and searches. Some titles or animations may be broken due to the automated creation process.
Science publication covering research, health, space, technology and the environment.
Newser is a news platform that publishes summarized versions of headline and breaking news stories. Its content spans categories including politics, business, health, sports, technology, and entertainment, and also includes longform articles, opinion pieces, and lifestyle content.
next-sitemap helps generate, validate, or manage XML sitemaps and robots files for search indexing.
Nightmare is an introductory course on binary exploitation and reverse engineering built around CTF challenges. Its materials are structured linearly and include documented write-ups for each challenge, with most modules offering multiple problems per topic so learners can apply an attack technique to different iterations. The course uses only free and open source tools, and its static site is built with mdbook.
Nightride.fm is a synthwave radio platform that streams synthwave and cyberpunk music from electronic artists, including retrowave, darksynth, ebm, dnb, edm, techno and other electronica, at 320kbps. It describes itself as free 24/7 live streaming.
Nmap is a free open source security scanner and network exploration tool available for Linux, Windows, UNIX and FreeBSD. Its documentation includes a reference guide covering command-line arguments, port scanning techniques, firewall and IDS evasion, and timing and performance, with the man page translated into 15 languages.