I have two domains, I'm not sure what to choose from

Ok, so I have two domains, and I'm not sure what to do.

1) muslimwebmaster.com
2) muslimwebmasterforum.com

Should I make the forum it's own separate domain (muslimwebmasterforum.com) OR make it a subdomain (forums.muslimwebmaster.com) with muslimwebmasterforum.com forwarding to it?

BTW, a blog will be on muslimwebmaster.com

you should separate the two pages, forums.muslimwebmaster.com the subdomain. It can not be effective domain.
More forums.muslimwebmaster.com you should not take too long.

personal experience that people would read more speculators.

muslimwebmasterforum.com sounds good, you can setup the forum on this domain instead of creating a sub-domain.

I agree With RiverWire. I would use forum.muslimwebmaster.com as my primary domain and publish another simple blog on muslimwebmasterforum.com. I would make sure that the meta tags on both websites match. With the forum on the main site and then a simple blog on your muslimwebmasterforum.com with a few keyword rich articles.

After that is done, I would do link building with both websites mirroring the meta tags I already included on both.

After you have done a fair amount of link building on muslimwebmasterforum.com stop and wait about a month for search engines to index your website through the links.

After that has occured I would do a permanent redirect to your main forum.muslimwebmaster.com website.

Hope that helps.

Thanks for all the input .

muslimwebmasterforum.com
That's one extra keyword you can get traffic from.