in.solit.us is a web application, developed in Ruby on Rails, where you can share any file you want, allowing you to limit this share to a single person, a group of people, or make it public and let everyone download it.

MediaFire is a free file and image hosting web site that started in 2006 and is located in Harris County, Texas, United States. It has received much attention because it has rather few limitations for users without an account compared to many other file hosters. The domain mediafire.com attracted at least 8.7 million visitors annually by 2008 according to a Compete.com study.

DropBoks offers free online storage, just like an online "drop box." You get 1 GB free, but the real beauty is the clean and simple interface that anyone can understand.

Box.net is a web-based service for content management, file sharing and collaboration aimed at the SMB and enterprise market.

Lijit is changing the way how your readers search your blog, With Lijit readers can search your blog networks, bookmarks, photos, blogroll, and more. It also gives the blogger detail statistics on your readers, where they came from, Popular search, Popular post and more.
Lijit also helps bloggers monetize their content via Search Results, Banners and more.

Zumodrive stores your data in the cloud and allows easy access to all of your files from any device. The product streams most files as if they were on a local drive.
For your most popular files Zumodrive stores them locally for offline use. The produce is aimed specifically at notebooks and mobile devices with smaller hard drives.

MyBloop is an unlimited free file storage website. We give anyone the ability to upload all their files and share them with anyone else for free. You can upload files directly from the website or you can install the BloopLoader application to upload files by dragging and drop from your desktop. The BloopLoader is available for Windows and Mac (Intel-based PC.)

Drop.io is an online file hosting and sharing service that is designed to be simple and emphasizes privacy. It allows users to create online sharing points called “drops” that are used for uploading and sharing documents, images, video, audio, and other digital content without accounts, registration or e-mail addresses. Drops are non-searchable and not networked.

Windows Live Sync (formerly known as Windows Live FolderShare) is a free-to-use application by Microsoft that is designed to allow files and folders between two or more computers be in sync with each other on Windows (XP and later) and Mac OS X based computers, similar to Live Mesh’s data synchronization services.
A maximum of 20 folders (or “libraries”) may by synced, including libraries shared over the internet. Each library can contain a maximum of 20,000 files and each file cannot exceed 4GB.

Box.net is an online file system that allows users to store, access and share files remotely. Its services include online storage, file hosting, and file sharing.
Box.net was founded in 2005 as a college business project by Aaron Levie (CEO) and Dylan Smith (CFO). It was incorporated in April of that year. Originally based in Washington, Box.net moved to Palo Alto, California, United States in late 2006.