I need my windows ASP.Net solution data to be posted as list items on SharePoint Online

I have an existing Asp.Net solution which stores data into SQL Server 2008 database.

I would like to reference that SQL server data in SharePoint Online list.  

what would be the best way to do it?

One solution I was thinking of implementing was

Create a SQL Azure database and make my Asp.Net application write data into the Azure database.

Reference that Azure database information as External content type data in SharePoint Online.

I want to find out what are the alternative solutions and there advantages.

Thanks

Nate