Seven Online Storage Solutions

OneDump
Store unlimited audio, text and image files securely. Onedump's clean and simple interface enables quick and efficient uploading. Create a free account to enable 'quicksend' and add files directly from your cell / mobile phone. Additional option for password protection available.

MyOtherDrive
Store up to 5GB of any digital media, including files over 1GB, free. Backup your important files. Link back to your photos from auctions and blogs - great for hosting your ebay images if you don't currently have your own domain.

FreeFileHosting
Upload, store and link to your images. Maximum file size 3MB.
Do take note of their T&C "...recommended the site be used for entertainment purposes only. We do not guarantee the availability and or usability of any of our our free services."
Still worth a mention, though :)

SwitchPod
Complete podcasting and hosting service, offering unmetered bandwidth. Upload and store up to 450mb free. View statistics and benefit from promotional opportunities, that is opportunities to promote your podcasts, incase you were thinking you're going to be inundated with email offers. Larger storage options available. You can signup as podcaster and have your Rss feed created automatically - or just register as a listener.

YourFileHost
Anonymously upload video files up to 25MB and YourFileHost will provide you with a link for sharing or downloading. A file will stay online as long as the downloadpage is accessed at least once every fourteen days. Currently may not work with AOL or Netscape Browsers, or on a Mac computer, though this is a temporary issue and will be fixed soon.

Textive
Think Text. Backup and store your important files, privately… But, choose to make your files public and Textive will pay you 20% (30% until the end of December, while in Beta) of the advertising revenue generated by your documents being viewed. Storage is free, and you can access your files from anywhere.

MailBigFile
Need to send large files by email? MailBigFile is a free service which allows you to send files up to 100Mb. Pro accounts are available, enabling sending of larger files, encryption, address book and more for a very reasonable $19/£10 a year. No registration to use the free service.