How long does it usually take to get listed?

[pc]

Originally Posted by Hollowhorn

I ....
I have submitted to a lot of link trades and lists but have only been listed by a couple of them. It's been 6-8 weeks for a lot of them and I haven't heard anything back......

Did you submitted trades aka hard link trades ?

Trading hard links with other webmasters takes more than just a submitting. If you used trading script like LinkEX then don't worry about anything and you may pull their links off as they probably don't have time to manage their sites and/or reply for your request.
If you talked with webmasters before trading hard links contact them and just ask them what's taking so long.