How to make sure where I post my articles gets indexed?
I am doing some article marketing and Google is not picking up the URL's where I posted my articles.

For some reason the page in question got indexed on a forum in a few minutes but the actual post on the Wiki took days to show up, and only AFTER being posted on the VN7 forum...

Screen capture over here Vancouver movers wiki page found on VN7 but not indexed on it's own

What is the best way to make sure my articles get seen by Google?

1. Make a sitempap with links to where my articles are published
2. Ping Google for every single pages (over different URL's), if so, how can I do this?
3. Post on blogs and forums with links to my articles
4. Any other suggestions?

Create a blog and post URL's of your articles there. However,if your articles are not unique then Google can glue backlinks.

Are you logged in on Google account when you search for that?

As for your question, maybe you can help the page or the url where your article was posted through maybe by bookmarking, in short, help to get indexed that page where your article reside.

What is the best way to make sure my articles get seen by Google?

Publish them ON YOUR SITE and get DECENT links to them.

I think that you must log in to your google account before seaching them on google. I would also like to suggest to you publish them on your own site and get quality links to them.

I think searching them on Google is the best way. Because its more accurate than Google webmaster tools.

try to submit the article in some popular article directory, like ezine.

reason: articles in ezine always have to pass uniqueness test. Thus google taken it for grant that article on ezine in genuine.
So it get indexed easily
Moreover many article directory picks up article from ezine along with your link. So you will get backlink without doing anything.

Good stuff stick on your site, generic crap stick into article directories and leave them be, aint no point in wasting time building up links to article directories.

The most excellent method to do this is to mark excellence content that other bloggers will link as well as to interrelate with other bloggers on their blogs through their comments.

Post it to social bookmarking sites. You can use Onlywire to automatically submit it to various bookmarking sites. These sites are visited by Google every minute and once your site has been added, it can be crawled and indexed.