domain Any thoughts on these names?

[Murwin]

Hi from the total Newb
I picked up these to firstly develop :red:
But Im curious as to the thoughts of others on value and marketability?
emotivideo.com : site for online training vid's etc
Printforge.com : articles databse
serpcafe.com : obvious - site for serps - an seo/serp articles etc discussion
yup - lots of em already - so heres another

Thanks heaps - putting helmet on now
Keep well.