Keyword flooding is the bad bad habit of punching in as many keywords as you can. Google hates this, and punishes you for it.  Technically speaking, this includes the type of pages where there is a Title Tag loaded with scores of keywords. Using over twelve keywords per title tag is considered to be too much when it comes to keyword tags but some optimistic web masters will load them with as many as a 100 keywords in an attempt to increase sales. If you are one of them forget, high status on google.

The problem with cramming too many keywords on your home page is that the search engine spiders consider your site as a very big dictinary instead of seeing your site as specific individual. Individually they can never get the keyword density or repetitions need to order the site highly. When it comes to SEO keep your keywords short, sweet yet targeted for best results. If you load it with popular, generic or "most visited" terms you are going to end up with a lot of visits from people on the internet who are not even remotely interested in your site.

The solution to this is to focus the content on your home page on three to five of your top keywords or key phrases. For example if you have a site on personal health care, do not use keywords like "health" or "care", instead use more specific smaller keywords, break your ideas of keywords in to a more precise word. As a rule of thumb the more competitive your site is the less keywords you should choose. Choose only two or three excellent words or phrases and use them three times in each block of text on your site to bring you the most business and try to keep your title copy to less than seven words (but ideally five words!)

Google Image Labeller is a tool which has a game type interaction

How to do it?
You login with your google account, start the game and you and another person are presented with a random same image, you have to enter tags and keyword for the image and then google checks how may of the tags are matching with your partner and you score points for them!

Rules:
You have 90 seconds for one image, then you have to move on to another image. After the game you can check how many points you have scored and see the links of the images and the website they were taken from

What is it, what do i get?
You just finally end up increasing the relevance of the images you get on google image search. So when you get a very relevant image on your next search thank the person who tagged it

Access Google Image Labeller here.