diff --git a/README.md b/README.md
index fef2fcd..ec97991 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,12 @@ released as open source, there will be no bait and switch.
 
 ## HTTP API
 
+Below is the proposed HTTP API for resumable file uploading. Prior art:
+
+* [Resumable Media Uploads in the Google Data Protocol](https://developers.google.com/gdata/docs/resumable_upload)
+* [Google Drive - Upload Files](https://developers.google.com/drive/manage-uploads)
+* [ResumableHttpRequestsProposal from Gears](http://code.google.com/p/gears/wiki/ResumableHttpRequestsProposal)
+
 ### POST /files
 
 **Request**