A dot-com company refers to a business that operates primarily on the internet, with a domain name that ends in ".com". The term became popular during the late 1990s and the early 2000s, especially during the internet boom, when many startups emerged with a focus on e-commerce, technology, and online services.

Actua Corporation is a technology-driven company that specializes in providing cloud-based software solutions and services to various industries. Its focus is primarily on vertical market software, addressing specific needs within sectors such as education, healthcare, and others. Actua operates through a range of subsidiaries and platforms, offering tailored solutions that enhance operational efficiency and improve customer experiences. Historically, Actua has utilized a model of acquiring and growing niche software companies to expand its offerings and market presence.

ChickClick was an online community and social networking platform launched in the late 1990s, aimed primarily at young women. It focused on providing a space for discussions, sharing interests, and connecting over topics such as fashion, beauty, health, and lifestyle. The platform featured user-generated content, forums, and articles, and was part of a broader trend toward creating niche online spaces for specific demographics.

CyberRebate was an online shopping platform that operated in the early 2000s, primarily known for offering consumers cash rebates on a wide range of products purchased through its site. The concept was built around the idea of combining e-commerce with a rebate system that incentivized shoppers to buy items through their platform.

As of my last knowledge update in October 2023, Computer.com is primarily a domain name that could be associated with various tech-related businesses, websites, or services. Domains like Computer.com are often used for websites that focus on computer hardware, software, reviews, technology news, or computer-related services. However, I don't have specific information about a particular organization or service that definitively operates under that domain name.

Kozmo.com was an internet-based delivery service that operated in the late 1990s and early 2000s. The company aimed to provide quick, on-demand delivery of various products, such as snacks, drinks, and videos, typically within an hour of ordering. Kozmo.com became known for its promise of free delivery and its distinctive branding, often using bright colors and playful marketing strategies. Despite its initial popularity and venture capital backing, Kozmo.

The dot-com bubble, which peaked in the late 1990s and burst in 2000, had a significant impact on many internet-based companies. Here’s a list of some notable companies that were affected: 1. **Pets.com** - Known for its sock puppet mascot, it became infamous for its rapid rise and fall, shutting down in 2000. 2. **Webvan** - An online grocery delivery service that expanded quickly but went bankrupt in 2001.

Usinternetworking, Inc., commonly referred to as USi, was a company that specialized in providing managed application hosting and services, particularly in the late 1990s and early 2000s. Founded in the mid-1990s, USi offered a variety of services including cloud computing solutions, web hosting, and enterprise applications, often targeting businesses looking to outsource their IT operations.

Vignette Corporation was a software company known primarily for its web content management and digital experience management solutions. Founded in the late 1990s, the company gained recognition for its products that helped organizations manage and publish content on the internet. Vignette's software enabled businesses to create, manage, and deliver websites and online content more efficiently.

Flooz.com was an online payment platform that aimed to facilitate digital transactions, particularly through the use of virtual currencies and gift cards. Launched in the late 1990s, it gained some popularity as a way for users to send money and make purchases online. The service allowed people to buy Flooz, which could then be used to make payments at various online merchants. It was one of the early attempts to create a user-friendly digital payment system, much like how PayPal operates today.

As of my last knowledge update in October 2023, "Freei" may refer to various concepts depending on the context, such as a brand, service, or product. However, there isn't a widely recognized entity called "Freei" that stands out in mainstream discussions.

Born reciprocity is a principle in physics related to the behavior of systems under transformations involving the interchange of certain variables, particularly in the context of optics and electromagnetism. Named after the physicist Max Born, the concept often arises in discussions about wave propagation, diffraction, and the relationship between electric and magnetic fields. In its simplest form, Born reciprocity states that certain physical laws and relationships are invariant under the exchange of "source" and "field" variables.

HotBot was one of the early web search engines that was developed in the late 1990s. It provided users with a way to search the internet for various types of content, including web pages, images, and news. HotBot distinguished itself through its advanced search features and user-friendly interface, allowing for more refined search queries compared to other search engines at the time. Initially, HotBot was powered by various search technologies, including content indexing from other search engines.

Interactive Intelligence, now known as NICE inContact after being acquired by NICE Ltd. in 2016, is a company that provides cloud-based communication and customer engagement solutions. It focuses on enabling organizations to enhance their customer service capabilities through various technologies, including: 1. **Cloud Contact Center Solutions**: Interactive Intelligence offers tools that help businesses manage customer interactions across multiple channels, including voice, email, chat, and social media. This helps improve customer experience and operational efficiency.

Rogaining is a form of endurance sport that combines elements of orienteering and long-distance running. Participants navigate their way across a varied terrain, typically using a map and compass, to visit as many checkpoints as possible within a set time limit, which often ranges from 6 to 24 hours. Key features of rogaining include: 1. **Team-Based:** Rogaining is usually done in teams, often consisting of 2 to 5 participants, although solo options are sometimes available.

As of my last update in October 2023, Tradex Technologies is a company that specializes in providing technology solutions for the trading and financial services industries. They typically focus on offering software and platforms that facilitate trading operations, streamline processes, and improve market access for financial institutions. Tradex Technologies may provide products and services that include trading software, market data analytics, risk management tools, and integration services for various trading systems.

MyLackey.com was an online platform designed to connect users with on-demand personal assistants and other service providers. It offered various tasks and services ranging from administrative support and personal errands to specialized tasks depending on user needs. The platform aimed to make it easier for individuals and businesses to find help for short-term or specific projects. Please check their official website for the latest information, as services and offerings may have changed since my last update.

In mathematics, particularly in the field of knot theory, a **stevedore knot** refers to a specific type of knot that is categorized as a nontrivial knot. Knot theory is a branch of topology that studies mathematical knots, which are embeddings of a circle in three-dimensional space, essentially investigating their properties and classifications. The stevedore knot is typically recognized for its distinct shape and characteristics, separating it from trivial knots (which can be untangled without cutting the string).

In order theory, **duality** refers to a fundamental principle that relates two seemingly different mathematical structures or concepts by establishing a correspondence between them. This principle is most commonly discussed in the context of lattice theory, partially ordered sets, and various algebraic structures.

Artin–Verdier duality is a concept in algebraic geometry and representation theory that arises in the study of sheaves and their dualities. It generalizes several duality theories in algebraic topology, such as Poincaré duality, to the setting of schemes and sheaves. The duality is particularly significant in the study of constructible sheaves, étale sheaves, and sheaf cohomology.