While Meta tag optimization services once had their glory days, less and less importance is given to them today. The main search engines such as Google give them some minor weight if any. Still, there is a lot of buzz going on around this term.
A Meta tag is a code inside a web page that provides information about that page's content. One example is the "description" Meta tag. A Meta tag is hidden inside the code of the page and does not affect how it is displayed inside a browser window.
Today, a Meta tag is most commonly used for keyword descriptions and special guidelines for the search engines to follow.
Here's an example of this page description tag:

<meta name="description" content="What is a Meta tag? how could Meta tags 
optimization service help your site rank higher?find answers to these questions">

As I stated before, there are very few search engines that still use Meta-tag content to determine relevancy. So why is this "Meta tag" term still used so often? Is there a need for Meta tag optimization services?

Well, just because Meta tags are not that important for search engine ranking, does not mean that they aren't important for humans. Take the description Meta tag, for example. Many times, this is what people read when they see the descriptive part of the results inside search engine listings. It should invite the searchers to click on the link and visit your site. Many amateur search engine optimizers still use a long list of keywords in the Meta-tag description in high density. These are old and obsolete search engine ranking strategies, not only in that this does not apply for the searchers but also that this is considered as a spam method by most of the search engines, so that they may lower your website ranking or even remove your web pages from their listings altogether. Professional Meta tag optimization services are all about knowing the best way of delivering a concise and encouraging message inline with all of the important business marketing keywords that can naturally be used.

Meta tags should include the main keywords of the page but only the most important ones. The description Meta tag should include these by delivering the main message and a call to action, not just listing them in its content without any clear relevancy.

"Can I do it by myself or do I need service providers to do it for me?"

It depends. Maybe you are in the marketing business and know exactly how to create your advertising message. After all, that's exactly what it is. The search engine is the advertising media, and the message description is the advertisement. If this is the case, go ahead and do it yourself. Deliver the main idea through the message, and make use of the main keywords, as described in the marketing keywords guide. Use those keywords that catch the reader's attention while searching for the right information.
Meta tag optimization services should aim at delivering a concise, encouraging and persuasive message. Those services who stuff your page description with many keywords should be avoided.
These goals are no different from those of the search engines. After all, search engines need to fulfill their searchers' wishes and give them what they want. They will therefore reward you if you follow the above guidelines.

Do you have great ideas for content and still don't know how to create your Meta tags? Check out our Meta tag generator.

Looking to optimize your Meta Tags? Check out Meta Tags Analyzer

If you decide to use Meta tag optimization services, you might also look for Meta tag optimization services such as these.