domain extension doesn't matter With ranking , you just need good seo work any domain, your ranking must be come in top results.
Negative... Google is TLD agnostic. Their ranking algorithm does not give preference to .com over other TLDs like .net, .info, .org, etc. The only way TLDs affect anything at Google is that IF you have not set your site's Geo Targetting setting in Google's Webmaster Tools, it is used to default your geo targetting. All ccTLDs (country specific or country coded top level domains like .co.uk) are assumed to be targetting that particular country's view of the Google index (Google.co.uk). All non-ccTLDs like .com, .net, .org, etc are assumed to be targetting Google.com. The benefit provided by using a .com domain is in user perspective. Users typically view .com domains as more legitimate than domains with other TLDs. And for this same reason, .com domains tend to attract more natural inbound links than domains with other non-country coded TLDs.
it doesn't matter you can use any domain extension, lets say there are two domains one is .com and one is .net ... both have same content but .net website is monitor by a professional SEO and .com monitor by a beginner then .com SEPRs will be down compare to .net
these days domain extension has no influence in search engine rankings but if you are targeting some specific country then country dedicated TLD can help, for example co.uk for UK.
More relevant is. Com for the visitors to your site. When you have a popular resource to another area than. Com, many visitors will move it to the name of your site .com. Search engine is not affected.
Just like others are saying".com" TLD doesn't really matter when it comes to Google ranking. The main reason you would want to get a ".com" is so that your visitors remember the domain as most people think the most popular TLD when typing a URL address a ".com".
While the TLD doesn't matter towards ranking, I alwasy choose to stay with the big 3- .com, .net and .org...while some people think you should keep to the traditional use of the tld, I do not, for eample I have a couple commercial domains that use the .org TLD (which was orig. intended for non profits).
I always go for .com~ If you ever want to sell the site. If you get competition. You have to be the biggest
i also prefer .com but if your business is strictly on local level you should get on local basis also and put redirection to the .com..or use com for English version of website and domain on local level for local language