Resources for collecting on the Internet may seem unlimited, but the choices for collecting tear bottles are very limited. I'll try to provide some good starting points, but it is difficult to maintain a comprehensive list. If you learn of a resource that should be included here, please let me know.
Lachrymatory/Tear Bottle Producers
General References on Glass Collecting
Bottle and Glass Collector Magazine
Antique Bottle Auctions
Go Antiques (Antique Sales and Auctions)
Finding Other Collectors