Question about directory submitting

Both the domains - .co.uk and .com go to my website - http://www.llcrafts.

Can anyone tell me please,
when I am submiting my website to different directories should I sumbit .co.uk to one directory and then .com to another directory and keep going alternating each time?
Would this help to raise the PR of both domains?
Or should I be concentrating on one or the other, if so, what happens to the one that isn't being submitted?

I would appreciate any help.
Kind Regards
Louise
http://www.llcrafts.co.uK

You can submit both domain to one directory as they are two different URL

Are you sure I wouldn't get penalised?

And what would i do about the two sets of titles and descriptions?
They couldn't be the same or similar, could they?

Louise
http://www.llcrafts.co.uk

It is better to have one single domain with high PR than multiple domains with scattered PR.
I would put a "moved permanently" header onto one domain to pass it's PR to the other.
When submiting your site to different directories only use your default domain and try to vary your title so that it will include your main keywords.

Could you explain that a wee bit more please!
How do I put a 'moved permanently' header onto one domain and which one would I be better putting in onto? http://www.llcrafts.co.uk was my first domain, then I got http://www.llcrafts.com.

Also, when I am submitting my site to a directory, I thought that the 'Title' was only meant to be the name of my company 'LL Crafts'. I was putting the keywords into the 'Description' section only, unless there was a section also for 'Keywords'. Have I been doing it wrong? Should I be typing in more than just LL Crafts in the 'Title' section?

Louise
http://www.llcrafts.co.uk

Well, if it's a matter of domain redirect, I think you can just set one to forward to another. I haven't done this before, so maybe we could hear another opinion from someone else.

It's not wrong to use "LL Crafts" or "llcrafts.co.uk" as title. But try to use the title to your advantage. Search engines take into consideration the anchor text of any link they find. That's why it is better to have some keywords in the title (both your title tag on your website and the title field used by the directories).

just an example:
instead of "LL Crafts" try "LL Crafts - hand illustrated door slates"

Of course, keep it short and concise. Otherwise they probably won't accept your submission.

do you have the same content on both the sites,
same titles, description etc...?
if yes, be careful, they can be penalised for duplicate content.
if they have same content, you may modify the content so that both are not same.

There is only one website, with only one IP. I really don't think Google will consider having 2 domains as black hat.

I really appreciate all of the feedback everyone is giving me.

Although, I am still a confused!
Could anyone explain a wee bit more about this 'moved permanently' header that I would put onto one of my domain names to transfer the PR to both domains?

So far I have been just submitting llcrafts.co.uk to the directories, but I don't know if llcrafts.com is dragging behind? I am a bit wary about submitting both to the same directory.

Louise
http://www.llcrafts.co.uk

i guess you should use .com domain while submit ion
in case u submitting on co.uk directories use that domain

Countrywise domain may increase traffic of that website If your site is based in uk and if you submit it .co.uk then your site traffic will also increase.Please keep in mind it is my opinion.