diff --git a/README.md b/README.md
index 1da5158da..c50ad75af 100644
--- a/README.md
+++ b/README.md
@@ -74,16 +74,19 @@ SeaweedFS can work very well with just the object store. [[Filer]] is added late
 * Automatic compaction to reclaimed disk spaces after deletion or update
 * Servers in the same cluster can have different disk spaces, file systems, OS etc.
 * Adding/Removing servers does **not** cause any data re-balancing
-* Optional [filer server][Filer] provides "normal" directories and files via http
-* Optional [mount filer][Mount] to read and write files directly as a local directory
-* Optional [Amazon S3 compatible API][AmazonS3API] to access files with S3 tooling.
 * Optionally fix the orientation for jpeg pictures
 * Support Etag, Accept-Range, Last-Modified, etc.
 * Support in-memory/leveldb/boltdb/btree mode tuning for memory/performance balance.
+## Filer Features
+* [filer server][Filer] provides "normal" directories and files via http.
+* [mount filer][Mount] to read and write files directly as a local directory via FUSE.
+* [Amazon S3 compatible API][AmazonS3API] to access files with S3 tooling.
+* [Async Backup To Cloud][BackupToCloud] can enjoy extreme fast local access and backup to Amazon S3, Google Cloud Storage.
 
 [Filer]: https://github.com/chrislusf/seaweedfs/wiki/Directories-and-Files
 [Mount]: https://github.com/chrislusf/seaweedfs/wiki/Mount
 [AmazonS3API]: https://github.com/chrislusf/seaweedfs/wiki/Amazon-S3-API
+[BackupToCloud]: https://github.com/chrislusf/seaweedfs/wiki/Backup-to-Cloud
 
 ## Example Usage
 By default, the master node runs on port 9333, and the volume nodes run on port 8080.