LazyHippy

There are more experienced people than me around, hopefully someone can give you better answers.

In my opinion a 4-word 21-character phrase isn't too long. I'm not sure what would be though. The url keywords need to be relevant to the content, but I'm not sure if and how too many might be penalised. (and duplicates eg. gamereviewsite.com/reviews/games/rpg-games/game-review) - Any SEO experts around?

Regarding the other domains, if they are variations of the same name and you get type in traffic or are trying to build a brand then yes direct them to your site. If they are different but in the same niche then it might be more beneficial to set up separate sites (different hosting/IP) and link to each other. Again, I'm sure someone else can give more/better advice on this.

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