If you are not receiving any hits on your Looking for Clan thread or Looking for members thread. I've written out a quick list of things you can include when making that thread.
A good start is to make the header with either LFC or LFM and the game [COD4, MW2 etc...].

For the LFC...
Username / previous Username You guys change names soooo much I have no idea why, but people may be familliar with your previous usernames or at least want to know why you changed.
Age Unfortunately it does matter.
Previous teams Gives a little information of what level of skill you are at.
Avaliability Some teams need larger availability than others.
Weapon Scope? AK?
Contact MSN, Xfire
What you are looking for? What level you would like to take it to. LAN team perhaps?
What you are seeking from?Semi serious clan no ragers?

For the LFM....
Leader(s) Who's in charge?
Number of members? That you are looking for and that you currently have.
Multigaming? Website? Websites help.
What you are looking for?CGi? CGm? LAN? Casual.
What can be expected from?What can we expect from you?
Required avaliability? When do you need?
Contact How to contact all leaders. Vent?
Awards and sponsorships?Most clans won't have any, but list 'em if you got 'em.

Thought this went without saying, but most threads in this forum have only 1 line usually "LFC recruit me". It does not help at all and it may be the reason you are still looking.