What I do not think most are doing, however, is accessing these web-based term lists efficiently as terminology resources in their work. It's hard to compete with the efficiency of integrated termbases, TMs, web search features, etc.
... unless of course you integrate a web search for those online spreadsheets which returns just the few data of interest.
|Matches found for German "ladepresse" in a glossary of a few thousand hunting terms
Building a custom search URL for your Google spreadsheet is fairly simple. In the example above it consists of three parts:
The red bit invokes the Google visualization API and specifies that the query results be returned as HTML (for display in a browser). The query language is similar to SQL, but if you use a prepared query for a given spreadsheet table structure, you don't need to learn any of that. Queries can be made which also return definitions, images, context examples or anything else that might reside in columns of interest in the online spreadsheet.
Using a tool like IntelliWebSearch or integrated extensions of OmegaT, memoQ and other tools, users working with any sort of tools can share a live glossary. Google Spreadsheets also have some permissions/security features which can be investigated if needed.
Of course other data can be shared this way, including TMs or XLIFF data as well as monolingual information. A little study of the relevant Google documentation reveals many possibilities :-)