Finding homes for strays?

We have two little cats living somewhere around our house...we have been feeding them outside for a few days.
We have reached our cat maximum and just have no more room for cats. I hate to leave them outside, and could use some advice.
We would like to bring them inside until we can find them homes. They are coming to us now, and seem to like the attention. We know they don't belong to anyone around us, they are very definite strays.
What I need advice on...
Is there somewhere I can post them to find a home? Does anyone know of any forums, sites etc where I can look to find a home for them?
Should I bring them in to keep them safe for the time until I can find a home, even if I cannot keep them in my home forever?

Any advice would be appreciated.

Thanks for the advice I wish we had a huge house and could keep every kitty we find, but we have 8 and it is just too much to take in anymore! We are already having some troubles with two of our oldest, dominant kitties, disliking two of our youngest kitties, so we just can't add to the mix.
We have had them checked out and brought them in, one is about 2, the other is 1ish from what the vet said. They are fine, both female and not spayed. We are keeping them away from the other kitties right now, as our oldest dominant female is not too happy about two unfixed females joining the house. She chases them SO much. We are hoping to get them spayed soon, but money is tight right now, so I just don't know. I know it will be easier to find them a home once spayed...and we have our two boy cats that are not yet fixed (they're the kittens in the house, and just recently old enough to neuter...) fixing 4 cats...the cost of all this is depressing me right now! but I love the kitties, and couldn't bear the thought of the strays being killed outside.
Anyway, we did post an ad on Craigslist for them, but it has not been going well.. We got a couple responses but I was not comfortable with the people from their emails, and decided I was not going to go that route. I plan to talk to the vet next time we go there about posting an ad, and I am trying to look up some rescues and see what I can find...

I am a lucky lady....and we found another stray last night Sadface because I wish we had enough room to home all these kitties but we do not.
The new one is a little baby kitten, he was in our chicken coop trying to eat chicken feed. Poor thing was severly malnourished, matted fur covering an old scab, and covered in fleas. We brought him in, bathed him, fed him and he is thrilled. He is staying in our bathroom right now until we can get him to a vet...he is eating well, but a LOT to the point his belly is just this big round thing that sticks out of his tiny body. He is using the litterbox well, solid poops and all. He found the boxes on his own this afternoon. Smart boy!
We thought we found a home for him which was awesome in one day, but it did not work out. We are getting so attached to him...and he to us. I work late in the home, and he sits with me all night. When I get up and leave the room, he cries until I return, or tries to follow me. When I am here, he sleeps right next to me. (His cries in the bathroom were heartbreaking, so we have him in the living room with a gate)
* Good news maybe....
I contacted a local vet...well a FEW local vets but only one gave me a positive response. The others responded to me basically saying our area is overrun with cats, all the no kill shelters are full, and there is nothing they can do to help out with the strays and no discounts for needing 4, now 5 cats fixed. The one who responded well, let me know about a program the humane society does in the area, where you can get vouchers for two free "fixes" for cats...two per fam per year, so I am going to try to get that. It includes a rabies vac also. The vet also told me if I made flyers they would post in their office, and I could advertise on their facebook page. So, I have a few options! I am going to try to work all that out tomorrow and see what I can do....so fingers crossed for me. I am trying not to stress, but we are having money issues already and having all these extra cats affects my work (i do daycare in my home and worry that with so many cats people will not want their children here... i keep it clean and all, but I try to hide some of the cats when people are here, and baby kittens are harder to hide then my older lazy cats who sleep in our guest room all the time!!) but we just could NOT leave this cat outside.
One of my friends asked me last night why we even brought him in and took the responsibility of trying to find him a home when we were already having money/cat issues, and I tried to explain it to her but she is not a cat lover and did not understand. Who could leave a baby kitten outside when it is starving and injured? I certainly could not...