I have a little question about sorting out pages for wordpress.. I'm hoping to launch a website and wanted the wordpress site to be located at mysite.com but when people enter www.mysite.com i want them to be taken into a intro page which would be about 10 seconds long and will click on a button which says "enter site" and will be taken to the homepage of the website. But my question is what do i name the introduction page as? would it affect google from indexing home page and so on?
There may actually be a lightbox plugin that does what you're asking. Lightbox is actually an overlay that blocks the view of the landing page. I would go to wordpress dot org and ask in their forum if anyone knows about this or not. If not, you can always as a coder to make one for you. Ed Dale of "The 30 day challenge" had a plugin that was a lightbox but showed a static webpage (any URL you wanted) in it. you could also time the duration of it. I have never heard of actually having a timed redirection page however.
Is it like a "welcome" or an "intro" page? if yes, then of course you can, but the difficulty level is depending on your theme files. No, in my opinion. It would not affect Google from indexing your home page unless you put nofollow attribute. According to my experience (I am not a SEO person), if you want to get an intro page in your homepage, do it from beginning. I have one site which had "usual" blogging sites, which have latest posts in the homepage, and I changed it to a static welcome page in the index page, and it lost its ranking, although it seems to be back to normal, but it needs months to recover.
I would personally skip the intro thing. Not good for SEO and its just another step the visitors have to go through to get to your valuable content. People visits websites for a reason, usually because they are after some info of some sort. Making them go through an extra step to get to that info is a pain and I've even left websites where I have to do that because I see it as outdated. Thats just my opinion. Plus I'm a little lazy and that extra click is just too much...