Hey Bluey is software that fetches your bookmarks and saves them on your computer so you can view and search them, even when offline. There is no Hey Bluey "cloud" - your bookmarks stay private on your computer.
Currently available for Windows.
Wordnet is an English dictionary that also shows the relationships between words.
The text within word definitions is cross linked to the exact sense of each word as used in that definition.
An API is coming soon.