We use visualstudio.com - web based TFS for source control and CI, will Octopus work within this environment?
Thanks for getting in touch! Yep! We currently have customers who have successfully integrated VSO and Octopus.
Here is a great blog post written about the subject: http://shawnmclean.com/2014/09/blue-green-deployments-with-octopus-deploy-and-azure-websites-from-tfs/
Hope this helps!