New-EventLog -LogName myLog -Source JobDue, JobDone, Remark

Write-EventLog -LogName myLog -Source JobDue -EntryType Information -EventId 1 -Message 'This could be a job description.'
Write-EventLog -LogName myLog -Source JobDue -EntryType Information -EventId 1 -Message 'This could be another job description.'

Get-EventLog -LogName myLog -Source JobDue -After 2014-05-10