Dropbox is most likely the most known cloud service on this short list. The desktop application for Dropbox is very easy to use and allows you to access, and update the items directly from a synced folder on your computer.
There is only one size option here, and it's very limiting. If you want to increase the storage, you would have to choose one of the business plans. If you're a photographer, like myself, you should be custom to sharing the unedited or edited files over the cloud. In my experience, the preview quality with Dropbox is the lowest on this list. Last, there have been several security issues with the company in the past so that is never good.
1TB = $99.00 / Year
There is a great chance you have a google email so the usability is seamless. You can add more access by downloading the desktop app. It runs almost exactly like the dropbox desktop application where you can access files without having to log into a website. I recommend purchasing the 100GB storage option at $1.99 / Month option. Google Drive is the best option for working simultaneously with others on Docs, Spreadsheets; however, these files do not take up a ton of storage so you may want to keep the purchased storage low at first.
There are not many cons with Google Drive. It's a little bit on the expensive side considering there is more functionality with collaborative document files and less on mass photo uploading.
15 GB = $0.00 / Year
100GB = $23.88 / Year
1TB = $119.88 / Year
10TB = $1,199.88 / Year
Amazon Cloud Drive
Okay.. Amazon Cloud Drive is why I am writing this entire blog post. You need to signup for this service and I will tell you why. First, look down where I listed the storage amount + pricing. Unlimited storage is a game changer for saving to the cloud. Uploading, file structure, folder sharing, and searching is simple on Amazon Cloud Drive. Also, it's very inexpensive.
For a company like Amazon to offer a service so appealing, I am disappointed every time is get to the sign-in page... The design here is so poor my heart hurts every time I have to login. Get it together, Amazon. Unlike Dropbox or Google Drive, Amazon Cloud Drive does not offer a desktop application where you can directly access your files. The application only allows you to upload to your cloud account.
Unlimited Photo Storage = $0.00 / Year (Only with Amazon Prime subscription)
Unlimited Photo + Video Storage = $59.99 / Year