Originally Posted by hjnet

Well some TGPs take longer to list your galleries (I still get acceptace emails for galleries I've submitted last summer), and some TGPs get their Galleries from a Gallery pool, which could cause that you'll not see the domain you've submitted to in your ref. stats.
Many TGPs also take months to get listed, but then you'll stay for a long time in their Archives, which gives nice SE-rankings and some additional Sales, so I think your testing period of 30 Days is too short, I always start looking into my ref. Stats after 2-3 months

Just as an example I have ~1900 TGPs in my Database, and I try to submit to ~700 of them every now and then (it should be daily), but my Galleries have received traffic from more than 3000 different Domains in Jan 05, so everything seems to be very mixed up in the TGP area, and therefore I just sort my TGPs by Traffic and submit to the most important first and to the less important later, but I never delete any TGP from my list.