New answers tagged blogger
Google has never shared the formula for how they choose the thumbnail with us. However various experiments make me believe that it's the first image over a certain size (perhaps 20k?) which is hosted in Picasa-web-albums/Google+Photos. I haven't heard or noticed restrictions based on file name - but that's not to say they don't exist. I documented what I ...
Blogger has limits on length of names of images. If a name is longer than the limit it is not used as thumbnail.
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