My mother in law has a business of her own and it's about marketing research. I wonder if I could build a website for her homebased business since someone said that having a domain is free. Is it necessary or not?

A website or even a blog can help any business, especially somehting likeresearch. But not all domains are free. Those worth having, like .com and .net, needs some amount to be shelled out and it's per annum.

Yes a dot.com is necessary. Do not get Free domains..Its not professional. PM me if you need help...

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A Website will cost you money, but not always a lot. Many hosts like 1&1 offer very small packages for around $7-8 a month and have excellent tools for helping you build the site. I would shop around and use a reputable web host, if $7-8 a month is too much, then its a hobby, not a business

A website is necessary for a marketing research website. The business can reach a lot more people via its own site. You may start off with buying your own domain and find a cheap but reliable webhost. As for the design of the website, there are a lot of free design templates you can download.

I think it is helpful for businesses to have a website. I sugggest using paid for hosting services and a domain rather than free hosting and sub domains.

Business should have own domain. It helps in having a clear identity. These days domains are not that costly. Moreover if you look around there are schemes which are helpful. Yahoo is allowing registration at $1.99/first year.

Yes there are many affordable domain registrars. It is important to have a domain name that matches your business name or does so as closely as possible.

You can actually take advantage of Yahoo's domain name offer which is $1.99 for the first year. There are those reliable web host provider which can offer as low as $3-$5 monthly web hosting to complete your website.

GDI : $10/ mo for domain hosting. It features INSTANT access to your domain, (most hosts make you wait up to 48 hours) professional design tool, 10 email addresses and unlimited sub-domains. (mini websites within your main website) If you need a link : PM me or email me at steven@maxprofit.ws