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CORE Econ provides free online economics textbooks and resources, including The Economy 2.0 ebooks and regional adaptations. The Economy: A South Asian Perspective adapts the introductory textbook with topics specific to South Asian and developing economies.
An introductory course on programming with Python. It covers reading and writing code, testing and debugging, functions, variables, conditionals, loops, exceptions, unit tests, third-party libraries, regular expressions, classes and file handling. It is designed for students with or without prior programming experience. The course's ten weeks of material are available free via OpenCourseWare.
CS50 is Harvard University's introduction to computer science and programming, intended for students with or without prior experience. It covers computational thinking, abstraction, algorithms and data structures, and programming in C, then Python, and later SQL, HTML, CSS and JavaScript, ending with a final project. The material is available free online through OpenCourseWare over eleven weeks.
CSES Problem Set is a collection of programming tasks organized into categories including introductory problems, sorting and searching, dynamic programming, graph algorithms, range queries, tree algorithms, mathematics and string algorithms. The page lists tasks with solved and attempt counts and offers account creation and login.
Database of Arabic Literature in English Studies (DAL) is a database compiled and edited by OxLit. It aims to advance the study, appreciation, and accessibility of Arabic literary heritage. DAL provides authoritative bibliographic entries, critical editions, and contextual information on poetry, prose, and criticism. The platform supports both introductory learners and advanced researchers with structured access to key texts, authors, genres, and themes.
DaVinci Resolve is a single application combining editing, color correction, visual effects, motion graphics, audio post production and photo editing. It is available in free and paid versions for Mac, Windows and Linux. DaVinci Resolve 21 introduces a Photo page and new AI tools.
A page from the Society for Medieval Military History offering full texts of books and articles about medieval military history, republished with permission from authors and publishers. It lists books and dissertations, book introductions and sample chapters, and articles.
DefensiveCSS is a site of practical CSS and design tips intended to help build future-proof user interfaces. It includes an introduction explaining the concept of defensive CSS and a set of tips covering topics such as flexbox wrapping, image distortion, long content, component spacing, auto-fit versus auto-fill, background repeat, fixed CSS grid values and CSS variable fallback.
Easy Croatian is a blog offering a simple introduction to the Croatian language for casual learners, stated as useful for Bosnian and Serbian as well. It covers alphabet and pronunciation, simplest sentences, objects, and the accusative case. Chapters are grouped, and the blog is also available offline as PDF, AZW3 and other downloads.
EconBiz is a research portal for economics and business studies, run as a service of the ZBW – Leibniz Information Centre for Economics. It supports searching for scholarly information such as journal articles, working papers and conferences worldwide. More than 2 million of its nearly 12 million publications are available directly in Open Access full text. An interactive tour introduces core search functions.
Equalizer APO is a parametric and graphic equalizer for Windows, implemented as an Audio Processing Object for the system effect infrastructure introduced with Windows Vista. Tested on Windows 7 through 11, it requires x64, x86 or ARM64 architecture, and applications must not bypass the system effect infrastructure. It can read Room EQ Wizard filter text files.
A page introducing Esperanto quickly, aimed at giving an overview of most features of the language in a few minutes before deciding what to study next. It explains roots and endings, and how to form verbs, nouns, adjectives and adverbs, with example sentences such as "Pluvas" and "Kato kuris."
Excel Easy offers a fully illustrated Excel tutorial with 300 examples, described as 100% free. It covers an introduction to Excel, basics, functions, data analysis and VBA, with 49 chapters and automatically saved progress.
This arXiv paper presents the first large-scale study of the Nostr social network, focusing on relays and post replication strategies. The authors find Nostr achieves superior decentralization compared to traditional Fediverse applications, while relay availability remains a challenge and replication introduces overhead. They propose two improvements.
The FreeBSD Wiki is a MoinMoin-powered community wiki for the FreeBSD project. It hosts pages on contributing to FreeBSD, community channels, supported hardware and platforms, development tools, active and inactive projects, the base system, ports and packages, and documentation. It also includes an introduction to the wiki, account creation and editing guidelines.
MedlinePlus Genetics is a consumer health resource providing information about how genetic variation affects human health. It covers genetic conditions, genes, chromosomes and mitochondrial DNA, and includes an introduction to fundamental genetics topics such as cells, DNA, inheritance and genetic testing.
Explains how metadata and structured access affect discovery of database-backed and deep-web content.
Gift4Designer is a site for browsing and downloading free fonts, templates, graphics and design resources. Its asset feed lists fonts, HTML5 portfolio templates, WordPress themes, Keynote templates and video intros contributed by various designers.
HamStudy.org provides free amateur radio flash cards, practice tests, and question pools, along with question explanations and an introduction to ham radio. Study material is organized by exam, including Technician, General, Amateur Extra, and other question pools; user registration is free.
The HP Computer Museum is a collection of HP computing products introduced between 1966 and 1991. It covers calculators, desktop computers, computer systems, tape and disc drives, plotters, printers, digitizers and other hardware, plus software, documentation and promotional materials. The site states it is not affiliated with HP Inc. or Hewlett Packard Enterprise.
After Effects template marketplace for intros, motion graphics, transitions, and video projects.
Hypercubing is the hobby of solving twisty puzzles such as the Rubik's cube in higher dimensions. Twisty puzzle movements are mathematically defined and can be generalized to higher spatial dimensions, with the puzzles visualized and simulated using computer software. The site offers an introduction to 4D, an FAQ, hypercubing software downloads, a progression section and a Discord server.
Imagen is a text-to-image diffusion model from Google Research's Brain Team that creates photorealistic images from input text. It builds on large transformer language models for text understanding and cascaded diffusion models for image generation. The project also introduced DrawBench, a benchmark for comparing text-to-image models.
PyTTI is a toolkit that facilitates image generation, animation, and manipulation through processes described as a human artist collaborating with AI assistants. The project states that users do not need to be deep learning experts or know coding to use the tools.
