The phrase "a searchable directory" is correct and usable in written English.
It can be used when referring to a collection of information that can be easily searched or accessed, typically in a digital format.
Example: "The website features a searchable directory of local businesses, making it easy for users to find what they need."
Alternatives: "an indexed directory" or "a queryable directory".
The following directories are designed to make the process easier: COMPLETEPLANET: www.completeplanet.com -- A searchable directory of about 600 specialized search tools, including links to extensive online databases like the National Climatic Data Center.
Its website has a searchable directory of its member organisations: shops, bars and restaurants whose owners refuse to pay up and shut up.
LINKS -- To Theater Central, a searchable directory of theater professionals, as well as an exhaustive collection of drama-related sites, including production companies, playhouses, stagecraft groups and fan sites.
The other parts of the campaign include a two-year focus on science on "Sesame Street," the venerable public television children's show, and a Web site, connectamillionminds.com, set up by Time Warner Cable, that provides a searchable directory of local science activities.
It offers a searchable directory of every verified Olympian on social media.
For more goodies, there's a searchable directory of SXSW attendees, list of investors, founders, you name it.
Europa, the European Union's Web site, has put together an excellent searchable Directory of Networks of Women Scientists 2003 with more than 80 networks across the European Union Member States and the countries associated to the Sixth Framework Programme in 2003.
Listen.com, by contrast, offers a hand-built, searchable directory of music by 140,000 artists, most although not all of it downloadable.
YELLOWPAGES.COM is a trusted online and now mobile source for comprehensive national and local business information, offering uniquely searchable directory listings.
I've written about Raw Sugar on TechCrunch previously, and they are moving toward launch of a new feature which will automatically import tag and category information from blogs to create a single browsable and searchable directory.
But the real, big picture goal, the HealthTap founder says, is to become the go-to resource for reliable health information — a mission that has led to the development of a searchable doctor directory (complete with ratings, peer-reviews and direct booking) alongside its HIPAA-secure Q&A offering.
