Cybercards are most useful for
keeping a personal diary
writing to-do lists
tracking internet-based research
creating new inventions

Cybercards are most useful for TRACKING INTERNET-BASED RESEARCH.

Cybercard note-taking makes possible the following tasks:

1) highlighting and taking notes directly on a webpage2) organizing information collected with tags
3) searching your collection of notes, tags, and webpages

Ithink the answer is c hope that works