Drop.io (Web-based, Basic: Free, Premium: From $19/Month)

The drop.io service is available in two primary flavors. The free service supports "file drops" which can consume up to 100MB of storage. Premium services start at $19 a month and expand the available storage from 100MB to 10GB and up, depending on how much storage and how many drops you'd like. Drop.io's "file drops" are where it really stands out compared to other file-sharing services. File drops are active pools of files to which you can add batches of files, share with others, allow other people to add files and collaborate, and view the media directly from drop.io's media viewer.

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