GroupDocs - GroupDocs is a web-based service for online document sharing, collaboration and management.
FileRun - Beautiful, fast and reliable selfhosted file sharing and sync.
FileProInfo - It's All About Files, Software, Online Tools - 100% Free
FilesAnywhere - FilesAnywhere offers free 1GB online file storage, with cloud storage solutions for Internet...
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
PHP File Manager - phpFileManager is a complete filesystem management tool on a single file.