Stample is described as 'knowledge network that allows you to deliver the right information at the right time, to your partners and clients. Stample helps teams to aggregate and share knowledge, increase your productivity, and helps you to generate new revenues' and is an app in the Social & Communications category. There are more than 100 alternatives to Stample for a variety of platforms, including Windows, Mac, Online / Web-based, Android and iPhone. The best alternative is Joplin. It's not free, so if you're looking for a free alternative, you could try Standard Notes or Google Keep. Other great apps like Stample are Microsoft OneNote (Freemium), Evernote (Freemium), Simplenote (Free, Open Source) and CherryTree (Free, Open Source).
Wheatt is an online bookmarking tool that allows you to to quickly save links, and then search them in every useful way imaginable, in any combination. For example, you can find a link that is tagged "programming", where the page contains the text "ruby".
Notebook PEAs - encryption of notes. Protects your private notes with a password. The text is never stored unencrypted on your disk (until you explicitly decide to do that). The used cryptographic primitives are currently considered as safe as possible.