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I'm planning on creating a site that uses a database where users can post free text ads for merchandise for sale (already working without database at http://www.gothamcitywebmerchandise.com ) and will in the near future allow merchandise for sale with picture ads for free. At a later date, if volume is too high, I may need to charge a small bandwidth fee for placing the picture ad. This is a learning experience for me for gnu/linux apps. If I need to charge a small fee, can I use MySQL for the transactions? I envision paypal (which I know sucks, but what real alternatives are there?) or some other payment processor, and it needs to be automated, as I expect high volume if I am not profiting from the fees. Can I use MySQL for this type of application? Is the features that I'll probably need missing from MySQL, and I should start directly with Postgres? I am trying to hit the ground running, and want to start learning the database right away, but I don't want to waste time on the wrong one.

Thanks for any (practical, not advocacy) advice.

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?

I use google almost exclusively. But what am I missing? I have a site that lists a 10 second Chevy Malibu street sleeper (not my car), and while that page has finally entered google's search engine, other pages such as the main page that lists other merchandise for sale such as computer monitors for sale, antiques for sale including antique violins, collectibles, telephone jacks and equipment, a Dodge Ramcharger , a web server or high school, college computer , Racing Champions 1/24 scale dragsters, funny cars and pro stock die cast cars for sale, and other items, have not entered the google search engine for months.

If it takes 3-4 months for one of my web pages or sites to be listed, how many up-to-date pages or sites am I missing because google wants payment for listings? Has anyone done any studies or research on pages or sites missed by google for months because they prefer to get paid for listings for quick inclusion or they leave you hanging? How many people won't see my site offering free text listings to others due to google's demand for payment?