Comment Tags are used to include design notes in the background source code when creating a website page. Comment tags are supposed to be used only for adding instructions or reminders to your html code; previously, these tags were used to artificially increase the keyword phrase count / proximity for targeted keyword phrases.
There was some time ago arguments that this comment tag stuffing technique worked, but it has always been a “Black Hat” SEO technique which could result in a drop out of the Google top ten. These days this type of seo technique will not help your website, if anything it will either be ignored completely by Google or produce a negative search engine placement result.
Text that is hidden from the view of website visitors by blending in the same colour text as the background colour was once, a very long time ago, a viable asset to building your website, these days it is generally regarded as the quickest way to see your website plummet out of the Google top ten and into oblivion.
Linking to other websites has long been an effective way of gaining links back into your website. Reciprocal linking is where you have to give a link back in return for the privilege of linking to other websites. This in itself is a valid seo strategy, however, we have found that using this method exclusively to return links to your website can and does have a negative effect on being in the Google top ten search results. It is far better and more productive to use this strategy leniently, mixing in other methods of gaining one way back links into your website. Such strategies as article submission, directory submission and good old fashioned begging and pleading for a back link is more advantageous.
Interlinking various website addresses (url’s) together that reside on one server (IP address) has long been a strategy used by webmasters to either attempt to get their websites indexed earlier or as a cheap way of getting back links into a site. Money of course plays a part as many people cannot afford the expense of more than one hosting account, especially when first starting out on their internet adventure. We have found that this type of strategy is totally worthless and will in no way help your website gain anything other than a swift exit from the Google top ten.