Great killer and simple tutorials to help newbie.
Tag is a Special tag which tell robots not to index any web page, and/or not to follow it.It is a method to tell search engine which is to be indexed,followed or no-index,no-follow any web page of your site.
Other meta tags are noarchive,nocache,nosnippet,noodp,noydir ,which have different function to do.Using meta tags in all pages is a lengthy and difficult task.However if you use WordPress as Cms then there is plugin called Robots Meta developed by Yoast which do the work for you.
OK !Your site is up, but how your users are going to donate you? PayPal Donation Button is the fastest and secured way to set up donation system on your website and accept credit cards, debit cards, bank transfers and PayPal.
Note: After creating your Donate buttons, you can place them on your website to start raising funds. However, to access funds you receive, you need a Premier or Business account.