Careful with blank though, this can be considered bad UX, because it is changing standard behaviour. We shall let the user decide if he wants to open a site in the same tab or a new one, that said, I guess even not so tech-savvy users are meta-clicking links nowadays anyway.
An example for a good case of blank links would be if it'd mean data loss, when a link opens in the same tab, like when you've an editor (or a simple input field) and the user is about to write something when he decides to open a link.
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Careful with blank though, this can be considered bad UX, because it is changing standard behaviour. We shall let the user decide if he wants to open a site in the same tab or a new one, that said, I guess even not so tech-savvy users are meta-clicking links nowadays anyway.
An example for a good case of blank links would be if it'd mean data loss, when a link opens in the same tab, like when you've an editor (or a simple input field) and the user is about to write something when he decides to open a link.