Your articles may have sent Spam signals to the SERPS. Sometimes creating too many articles, if deemed low quality by Google, can cause problems post-penguin. Instead os article marketing, try social media and good posts with your site url in Twitter, Facebook and LinkedIn. Article marketing still works, but many IM's have scaled it back.

I forgot to say if it is a tech blog - spend 10 mins each day posting intelligent comments on high PR blogs - the ones that let you list a URL.

Well if its new content can't you just ping it everytime when you put a new piece on there and raise that red flag for the serps to crawl it.

It totally depends on what kind of content you are putting on the site as well as some other things.

I am not totally familiar with blogger, but if you are able to put a site map on your blog, you should do so. Also, ping it every time you have a new post.

Is your content of good quality? Is it original? (Is it at least 40% spun content if nothing else? And is that spun content actually readable?)

Do you have crappy backlinks pointing to your blog? (If you have bad backlinks, you can be penalized by Google.) Bad backlinks are links that have no relevance to your blog's contents, niche and theme. Bad backlinks (or links that don't really matter) have a PR of less than 1 due to Google updates.

You may want to consider all of these issues when it comes to getting indexed and ranked.

I would use a professional program but you can go to pingmyurl and do it for free.

Just make sure you did change something on there because if you didn't and you ping it often you will get slapped by google.