You can find an embroidery machine for home use. There are many offered on Amazon such as this one http://www.amazon.com/Brother-SE400-Computerized-Embroidery-Machine/dp/B003AVMZA4.
Brother Embroidery machines should be able to be serviced by most qualified embroidery machine repair services. A listing of those dealers specifically authorized and trained in Brother Embroidery Machine repair can be found in the Service section of the Brother USA website.
You can find Brother embroidery designs online by visiting the site "Embroideryisfree", where they have thousands of different designs for you to choose from.
Customer reviews for the Brother SE-350 Sewing and Embroidery Machine can be found on the Amazon site. The site allows customers who have purchased the item to write a review.
One can purchase a commercial embroidery machine in a number of different places. Commercial embroidery machines are available from Artistic Threadworks and on the iMachine Group website.
There are many places one might go to purchase a used embroidery machine online. One such website would be the official eBay website from a reputable seller.
Any local sewing supply store should carry embroidery machine thread. JoAnn Fabrics is one example of a large national fabric & sewing supply store. Many cities also have various small, local sewing shops where one could purchase embroidery machine thread.
A sequins sewing machine is one that is used to sew sequins onto fabric. Embroidery thread should not break while using it in one since it is fairly strong.
Information about embroidery can be found online. There are forums dedicated to embroidery, where those who enjoy the hobby discuss it. Check one of these forums to find information about embroidery.
If you are just getting started I would recomend the Tajima machines, they are the best out there. They cost a little more but have a higher resale value when and if you decide to sell your business or want to upgrade. Most machines are good and built pretty much the same. The control panel and it's ease of use is important to look at and the biggest factor I always tell people to consider is the service. How well will this company service their machine? Call some people who have purchased one from them and see what they have to say. I would also consider a used machine with some kind of warranty. This way you don't have the big loss in value when "you drive it off the lot". If for some reason you decide it is not for you then you can sell the machine and get most of your money back.
One can purchase a Brother knitting machine online at sites such as Custom Knits MFG and The Find. One can also purcahse them online at Amazon and eBay.
There is currently one for sale on eBay: http://cgi.ebay.com/Brother-2003D-ULT-Disney-Sewing-and-embroidery-machine_W0QQitemZ190320727900QQcmdZViewItemQQptZBI_Sewing_Machines?hash=item2c4fffd75c&_trksid=p3286.c0.m14&_trkparms=65%3A12|66%3A2|39%3A1|72%3A1205|293%3A1|294%3A50.