You can use PixieBrix to add custom actions to any webpage. One example - you can add a button to one webpage to perform a lookup or search in a different webpage. For example:
- Due Diligence: Add a button in LinkedIn to search a company in Crunchbase, Pitchbook, etc.
- Cross-Referencing: Add a button to OpenTable to cross-reference reviews in Yelp
- Navigational Efficiency: Add a button to SAP to look up a SKU in an eCommerce site
Try this tutorial to learn how to build a custom search: Search Yelp Reviews from OpenTable (6 min)