If you have ever downloaded a file from a website such as Rapidshare or Mediafire and want to download it again, you probably have had a hard time searching for the file on those websites. This is because those websites don’t actually store files to make searching easy. However, there are other websites that can be considered as search engines for online files instead of web pages. These websites can help you find the exact file you are looking for.
1. DropBox
DropBox is definitely among the most popular services and more than 35 million unique users visit the website every month. You get 2 GB of free storage capacity which goes up to 1 TB with the $10 per month package. This does not seem very impressive given the aggressive way in which the service is advertised. In comparison, OneDrive from Microsoft offers 15 GB of free storage space and the same 1 TB for monthly fee of $10. You also get free access to Office 265!
2. File Tram
Among the newer entrants, one of the most popular search engines for online files is File Tram. You can use the service for only $10 a month and you also get a daily download capacity of 500 MB and a maximum allowable file size of 100 MB. Signing up for the premium program gives you access to unlimited downloading.
3. FilesHut
Another good search engine for files is FilesHut. It can search for your desired file in more than 50 file hosting websites including Mediafire and Rapidshare. It has one of the most convenient interfaces which explain the millions of files that are downloaded from FilesHut every day.
4. Bergfiles
Bergfiles is also a very efficient search engine for online files but it has a slightly different approach to archiving. Basically, Bergfiles categorizes files as ebooks, games, applications, and so on. This makes the search process more user-friendly and efficient since you can narrow down your search according to the type of file you are looking for.
5. UVRX
UVRX is another interesting online file search engine that collects data from Google resources. The great thing about UVRX is that it accepts instructions in multiple languages and can be used even by those who are not fluent in English or prefer using a different language. UVRX is fairly resourceful and is able to track down files hosted by Badonga, Depositfiles and Usenet in addition to the more popular Mediafire and Rapidshare.
6. SaberCatHost
You could also try SaberCatHost which comes with free storage space up to 5 GB and guarantees quick loading speeds. What’s even better is that you can use SaberCatHost even on your smartphone without experiencing any decline in service quality. Signing up for an upgraded package gives you access to more advanced search features and also greater storage space.
7. Mega
Mega is a rapidly growing search engine for online files and attracts more than 6 million new users every month. Signing up for the free service gives instant access to 50 GB of storage space and 10 GB bandwidth. This makes it a convenient service for a limited number of files but not for a very large collection or for very frequent downloading.

By the way, SaberCatHost also has unlimited downloading.
I don’t get how people like Dropbox. Dropbox has a poor UI and like you mentioned, low free storage. Only 2gb is disappointing. I think Dropbox just advertises too much.
Personally, my favorite is SaberCatHost. SaberCatHost is the only one with both Unlimited downloading and Unlimited uploading for premium. It’s less expensive than others too.