For those that may not be aware, your ancestry.com testing certainly isn't useless without this. You can upload your results FOR FREE to Gedmatch.com and compare chromosomes. I recommend people upload their results, regardless of whether or not ancestry.com does anything, to Gedmatch, because you expand your matches greatly. This is due to the fact that people from all three major DNA testing sites -- FamilyTreeDNA, 23andMe, and Ancestry -- can upload their results there and match. So by adding your DNA data to Gedmatch, you can locate cousins that have tested with any of the three sites (that have uploaded to Gedmatch).
If you want a way to help you analyze your chromosomes, I highly recommend another FREE site, GenomeMate.com. You can download their software and then import your data from Gedmatch. It's a great way to help you organize and analyze your DNA. It's not the most user friendly software I've ever seen, so you need to be a bit of a 'techie' to get the most out of it.
