3: Send Really Big Files From Your Desktop with Sendago
Sendago is an impressive desktop+web software for sharing files on your hard drive that are otherwise too large for sending as email attachments. It's not an online file storage service but a good alternate to email attachments.
4: Send Large Attachments in Microsoft Outlook via YouSendit Plugin, Track File Delivery
Files as large as 100 MB can be shared over YouSendit for free and upto 2 GB if you are a paying customer.
5: Never Forget To Include Email Attachments
Imagine your boss waiting for the sales report, you had sent the email message but forgot to include the attachment and left for the day.