Is there a way to examine SQL Jobs for references to linked servers?

Question

In preparation for migrating a server farm to the cloud, I am attempting to enumerate all the linked servers that have been defined over the years. I also need to find (and correct) the code that references these linked servers.

Here is something I threw togetether to help identify names of objects that refer to the linked server, but this only works against stored procs, views, functions and triggers:

declare @sql varchar(2000)
select  @SQL = 'use ?;
print ''?'';
print replicate(''-'',len(''?''));
print '' ''; 

select object_name(sc.id)
  from syscomments sc
  where text like ''%TheLinkedServer%''
'

exec sp_msforeachdb @sql

I know I will have to crack open the DTS/SSIS packages...I am just trying to get as many finished as quickly as possible.