Does anyone use any online programs for accounting purposes - ie Xerox, Quickbooks and Sage etc ?

Any benefits to this, recommendations, opinions ?

Currently I simply use an excel spreadsheet for everything and I have to say serves me well. However, I have been getting a lot of business advice, mainly on how to streamline everything and reduce admin. Advice so far has been great so eager to try any suggestions I have been given, including the use of online accounting solutions.