I especially like this company, Heirloom seeds. They only sell non-hybrid seeds so you can save for future use. I ordered around the first of the year yet it took about 6 weeks to get here, they are a small company and very busy right now. Just got them last night, very excited. Oh and they threw in 3 free packets of seeds so that was an unexpected bonus. Yes, they were deliberately put in there, it says “free seed”. They gave me some Bibb lettuce, iriquois melon and straightneck squash.
Another item I got from them was an medicinal garden assortment. They send you the seeds, along with a booklet that tells you what tinctures, infusions, etc to make with not only the seeds they sent but a bunch of other plants.
In addition to selling seed as a reasonable price, they have “sealed packets” which are a tad more expensive but guaranteed to save for at least 3 years.
Here is the medicinal herb package.
http://www.heirloomseeds.com/herb2.htm
Your link is a good one, I haven’t used their seeds, but have had them recommended by many and they are always on the lists with the good companies.