How can I get the newest information on treatment options?

From your doctor. Your oncologist and your whole medical team should be able to provide you with the most up to date information on your disease. Trying to find this yourself on the internet is fraught with problems. However, many sites are good starting points and offer valuable information that can be used during your treatment. They include the leukemia and lymphoma society which has links to other sites.
MD / Web. 1) your md 2) web - your hospital / university you are seen at - clinicaltrials.Gov - other reputable sites: nih, nci, mayo, etc.