The name components of a digital sticky note:
net
n. Any network containing computers and telecommunications equipment using digital technology.
cite: https://www.dictionary.com/browse/net
nub
n. Something that sticks out and is clearly seen.
n. The point, gist, crux or heart of a matter.
cite: https://www.dictionary.com/browse/nub
nubby
adj. Having nubs.
cite: https://www.dictionary.com/browse/nubby
n. Diminutive of nub.
cite: W. “Mac” McMeans, creator
NetNubbyⓇ
n. A small note affixed to a webpage revealing germane thoughts that are targeted and concise.