Clique em Adicionar um Gadget
Ao abrir, clique em HTML/Javascript
Cole então o próximo código fazendo as modificações necessárias.
<style>
#menu-social {
margin: 40px 1px 0 10px;
float: right;
}
</style>
<div id="menu-social">
<a href="ENDEREÇO DO BLOGGER" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg-jwyG839lpDopKHaa24ZJ_MTHiI9OmDtzXx9TdmCGu68s3ou53ou7V0MEpxigYwtceaJTPXhHt3aXmT_kmPpD5vp-NNo0zbSErowBUZGEQcVTVwLtVz3E9_d7LY5P4UalIf6bMIQ5FTE/s1600/Blogger.png" width="60px" /></a>
<a href="ENDEREÇO DO FACEBOOK" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihuq5gKGTKG6LdqdIPc7ihsdlUU2Jy4aoV80_MMqnM71lvGlZbhQK7fCHl4eTVGBZ6trThiEAmsyjInvcCps_FHLGCTeQEGv3zkVSJKqWQZDtgLvZXxJ0z07CXG3w4tWNaXAxBLvLp00A/s1600/Facebook.png" width="60px" /></a>
<a href="ENDEREÇO DO TWITTER" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiIaHAAm0Z5FP3VMiheHcIJCikIL2QsQDYK6q9bgIh8DY8z0ckn-TVs95-zJaOBj4sdTMCs8pE67SW4QT5fwYNmKCJWmG67ggmhxZkAQIkYTqE7UJsvd21q5cfo0LrmillPabll5bY5MtY/s1600/Twitter2.png" width="60px" /></a>
<a href="mailto:ENDEREÇO DO EMAIL" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj08h5DaK92arFMCGn_qNohhmniYdimaP1v-z3q6vON1YtIGOTh3-yykwZqKMltg3MOx5U6lzvecpdSy2BiZAT-jBQXMYwHwPuouhZ3oX5MmphxTCqLMSiAZBuaq-QgVOYmC7OMz7BPu90/s1600/GMail.png" width="60px" /></a>
<a href="ENDEREÇO DO FEED" imageanchor="1"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhz9ZsFH-piIi7wxMu7jhVRqG5sBKVR7u7E03sdjfg3xhFPHvC_YF9SbOiWrvSDaF6yk51-AjMC9qdW25JOl5Ip11H0sEh7chCASlKekHwTByRjPrKDUSppxZDc3vaRUjL3qUUMTxjLdU/s1600/RSS.png" width="60px" /></a></div>