AirDropper
AirDropper lets Dropbox users send a request for files to anyone, even if the person doesn't have a Dropbox account. The person you're requesting the files from just needs an email address or some other means for you to send them the secure upload link we provide.  
 
First you connect AirDropper to your Dropbox account. Then you fill out our request form with a description of the files you want and provide a list of emails to request those files from. Once the person you're requesting the files from visits our secure page and uploads the files, we immediately put the files in a subfolder called "AirDropper" within your Dropbox. Simple for everybody!