I have indulged in this activity, that is getting a genetic test. I contracted with a company based upon their web site called '23&Me' at a time when they were offering the service at a discount. My paternal (Saul) group was reported as
R1b1b2a1a2f* Haplogroup for the typing of my Y-DNA
You can enter this, or at least the first few characters into a web search engine to read what this means. Try:
http://en.wikipedia.org/wiki/Haplogroup_R1b_(Y-DNA)
Don't expect that specific results will be given, just general, and try various web sites to read differing reports or opinions. Although many years of data has already been accumlated, much more will be required to really tag human migrations. If you learn anything worthwhile I would be pleased to learn about it!
William Saul