Memento!

A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

Take quick notes on Post-It(r) like sticky notes on Windows desktop, stick those notes to websites, documents & folders. Set reminder alarm to each sticky note. To avoid desktop clutter, you can organize those sticky notes inside folders. Send sticky notes to another computer over local network (LAN) or Internet, Sync sticky notes between computers using the Notezilla.Net cloud service, access your sticky notes on any smart-device such as iOS(iPhone/iPad), Android, Windows Phone, Blackberry etc. »

wikidPad is a Wiki-like notebook for storing your thoughts, ideas, todo lists, contacts, or anything else you can think of to write down. What makes wikidPad different from other notepad applications is the ease with which you can cross-link your information. Links in a wiki are created by typing in WikiWords. A WikiWord is any mixed case word typed into the editor. TodoList or JohnDoe are example WikiWords. The term wiki means "quick" in Hawaiian, and wikis are all about quickly linking your information together. Wikis are not a new concept, in fact there are many web based wiki servers avai »

As simple as a spreadsheetAirtable looks like a fast and flexible spreadsheet, but it's actually a relational database that can store almost anything.

Base is a full-featured desktop database front end, designed to meet the needs of a broad array of users, for all kinds of usages, such as keeping track of collections of objects,maintaining customer information databases,maintaining student grade and curriculum databases,storing survey information and experimentation data,storing population and census data,producing monthly financial reports in companies and organizations, managing audit, quality assurance and production data.

FileMaker Pro is powerful, easy-to-use database software that helps you and your team get any task done faster. Millions of people in business, government, and education use FileMaker Pro to effortlessly manage all their information on Windows, Mac, and the web.

MyTetra is open source and cross platform personal manager for information accumulation. It is powerful program for data memorization and structuring notes.

A note taking application for KDE. Lots of features. This multi-purpose note-taking application helps you to: * Easily take all sort of notes * Collect research results and share them * Centralize your project data and reuse it * Quickly organize your thoughts in idea boxes * Keep track of your information in a smart way * Make intelligent To Do lists

Awesome Note is an innovative note taking application and to-do manager that allows you to combine notes with to-do flexibility.

ConnectedText is a powerful but simple information management system. It is based on wiki principles and is a free-form note-taking and note-management application that allows you to keep an unlimited number of notes in one or many files. The information can be accessed at an instant through sophisticated full-text searches, which can span all open files. Navigation between topics is a breeze. ConnectedText works like a notebook with an unlimited number of pages, which can be linked with one another easily by wiki-type links. It is also a free text database with hyper-linking ability. This provides you with a fast and easy way to store, structure and organize all your notes. It has a very capable outliner. ConnectedText's outlining view works like a one-pane outliner. But it can also be made to work two-pane outliner. Topics can be dragged into the outline view, for instance. It can also be used as a clipboard collection tool. When the clipboard catcher is turned on, anything copied to the Windows clipboard is automatically transferred to a ConnectedText topic. You can also drag and drop information from almost any source on the Web or your computer. »

OmniOutliner is a start-to-finish writing app. Perfect for collecting information, outlining Big Ideas, adding structure to any sort of writing, and much more. From grocery lists to email drafts to long-form composition.

myBase is a unique freeform database software that creates full-text searchable databases and organizes information in the tree-structured outline form, along with capability of capturing information from a variety of data sources such as texts, webpages, images, Word documents, Excel spreadsheets, Outlook items, and even arbitrary files etc.

When you need a rough copy to save or to process some pieces of a text, Flashnote is small, quick and convenient. Press the shortcut-key combination and a rough copy is on the screen in a flash of a second. Press ESC and the program hides. It's that simple. You don't need to find a place for text, to run Notepad or huge heavy PIM. Flashnote is a lightweight notes manager, everything gets done quickly, simply and in a more convenient way.

The Guide is a two-pane outliner - a program that allows you to arrange text notes in a tree-like structure. It supports formatted text, exporting to RTF and hyperlinks (both internal and external).

Tinderbox is a personal content assistant that helps you visualize, analyze, and share your notes.