Dropbox

Dropbox is a very popular, robust cloud storage service, which offers users 2GB of storage for free. Users can share files with anyone with their public folder, or with other Dropbox users through email invitation. Users can upgrade to 50GB for $10 a month or 100GB for $20 a month.

RapidShare is probably the closest to Megaupload in terms of both capabilities and features. RapidShare lets users upload files of unlimited size and share them through an email, Twitter or Facebook link. There is also no storage limit, but files are automatically deleted after a certain period of time. Users who want to utilize RapidShare as a cloud storage service can upgrade to RapidPro for about $39 (29.9 euros-RapidShare is based in Switzerland) for 150 days or about $130 for two years.

MediaFire is pretty much a stripped-down version of RapidShare that also lets users upload any type of file, with a maximum upload size of 2GB for free. There is no storage limit, but your files will be deleted after a certain period of time. Users can upgrade to a professional account for $9 a month, which also ups maximum file size to 4GB. Files are shared through a link.

YouSendIt is the granddaddy of file services, and it is still regarded as one of the original file-sharing services still available today. YouSendIt offers 2GB of free storage, with a per-file upload limit of 50MB. Files can then be shared through email, but only five per month for free. Users who choose the free service also have to deal with popup ads. For $10 a month, users can skip the ads and will also receive 5GB of storage total, with a file-size limitation of 2GB and users can share those files with as many as 10 other users. Unlimited storage and unlimited shares (but the same maximum file size) is also available for $15 a month, or $150 a year.

Box is a cloud-storage service, and not a file-sharing service. However, users get 5GB for free, and can share through a direct link to a file, or people can invite others to view the contents of an entire folder by email. Free users can only upload files 25MB or smaller. Paid users can up their upload limit to 1GB-per-file for $10 a month, which also expands storage to 25GB, or $20 for 50GB.

Amazon Cloud Drive is a no-frills version of Dropbox or Box, which offers 5GB of storage space for free, with an option to upgrade from 20GB to 1,000GB, for about $1 a gigabyte, per year. However, file sharing is not offered and the maximum file size is 2GB.

Minus is one of the simplest services to use. People who sign up for an account are able to simply drag and drop any file (up to 2GB) to upload, which gives users up to 50GB of free storage. Uploaded files can be shared through an automatically generated link, which is very simple indeed.

SkyDrive is a free offering from Microsoft and gives users 25GB of free storage. However, users are limited to files sizes of 50MB and they must have a Hotmail or other Microsoft account. Users can share files through email.

Wupload claims it is a 100 percent safe and anonymous file-sharing site. Users are entitled to free uploads of as much as 2GB. However, free means that users cannot use more than 750GB of space and are limited to uploads of 2GB. Premium users overcome those limitations and are allowed to up their maximum file upload to 10GB for $9 for 30 days, up to $90 for two years.

Very much like Dropbox, SugarSync gives 5GB of storage for free and offers paid plans that range from $5 per month (30GB) to $25 per month (250GB). Free accounts are limited to 25GB file uploads. Files can be shared through a link, or by inviting users to join a folder.