Widget com links para sus páginas sociais, buscador, e outros links de redes sociais. Bem bonito e profissional. Do excelente blog New Blogger, que recomendo demais que conheçam.
Clique em Layout
Ao abrir, clique em HTML/Javascript
Cole então o próximo código fazendo as modificações necessárias.
<!-- Menu social -->
<style type='text/css'>
.subbox{width:305px;border:0 solid #141414;overflow:hidden}
.addthis_toolbox{padding:15px 0 5px 0;text-align:center}
.addthis_toolbox .custom_images a{width:32px;height:32px;margin:0 4px 0 4px;padding:0}
.addthis_toolbox .custom_images a:hover img{opacity:1}
.addthis_toolbox .custom_images a img{opacity:0.85}
.rssbox{background:#f7f6f6;border:1px solid #ccd1d7;padding:5px 10px;margin:10px 0 0 0;-moz-border-radius:10px;-khtml-border-radius:10px;-webkit-border-radius:10px;border-radius:10px;width:125px}
.rssbox:hover{border:1px solid #92aed1}
.rssbox a{color:#7c8a9b;text-transform:uppercase;text-decoration:none;font:bold 12px Arial,Helvetica,Sans-serif}
.rssbox a:hover{color:#7c8a9b;text-decoration:underline}
.emailsbox{background:#f7f6f6;border:1px solid #ccd1d7;padding:5px 10px;margin:10px 0 0 0;-moz-border-radius:10px;-khtml-border-radius:10px;-webkit-border-radius:10px;border-radius:10px;width:125px}
.emailsbox:hover{border:1px solid #92aed1}
.emailsbox a{color:#7c8a9b;text-transform:uppercase;text-decoration:none;font:bold 12px Arial,Helvetica,Sans-serif}
.emailsbox a:hover{color:#7c8a9b;text-decoration:underline}
.twitterbox{background:#f7f6f6;border:1px solid #ccd1d7;padding:5px 10px;margin:10px 0 0 0;-moz-border-radius:10px;-khtml-border-radius:10px;-webkit-border-radius:10px;border-radius:10px;width:125px}
.twitterbox:hover{border:1px solid #92aed1}
.twitterbox a{color:#7c8a9b;text-transform:uppercase;text-decoration:none;font:bold 12px Arial,Helvetica,Sans-serif}>
.twitterbox a:hover{color:#7c8a9b;text-decoration:underline}
.facebookbox{background:#f7f6f6;border:1px solid #ccd1d7;padding:5px 10px;margin:10px 0 0 0;-moz-border-radius:10px;-khtml-border-radius:10px;-webkit-border-radius:10px;border-radius:10px;width:125px}
.facebookbox:hover{border:1px solid #92aed1}
.facebookbox a{color:#7c8a9b;text-transform:uppercase;text-decoration:none;font:bold 12px Arial,Helvetica,Sans-serif}
.facebookbox a:hover{color:#7c8a9b;text-decoration:underline}
#search{width:290px;padding:2px 2px;background:#f7f6f6;border:1px solid #ccd1d7;height:28px;margin-top:0;margin-left:5px;display:inline;float:left}
#search:hover{border:1px solid #92aed1}
#search form{margin:0;padding:0}
#search fieldset{margin:0;padding:0;border:none}
#search p{margin:0;font-size:85%}
#s{width:200px;margin:0 0 0 0;padding:5px 5px 5px 5px;border:none;font:normal 80% "Tahoma",Arial,Helvetica,sans-serif;color:#000;float:left;background:#f7f6f6;display:inline}
input#searchsubmit{float:right;display:inline;margin:0 0 0 0;height:28px;background:#b2b2b2;color:#000;border:0 solid #222}
</style>
<div class="subbox">
<div id='search' style='display:inline;'>
<form action='/search' id='searchform' method='get'>
<input id="s" name="q" onblur="if (this.value == "") {this.value = "Buscar...";}" onfocus="if (this.value == "Buscar...") {this.value = "";}" type="text" value="Buscar..." />
<input id="searchsubmit" type="submit" value="Buscar" />
</form>
</div>
<table><tr>
<td><div class="rssbox">
<a href="http://feeds.feedburner.com/ID DE SEU FEEDBOURNER" target="_blank" rel="nofollow"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjaOqu6HNeyFwRND9Lndel-ege6kw6kmz2ZqIpY_vftWUW_Sb3O4hh5LL5UhVSekX69Y3iy270ei8xp-9xfMlh3jV-Kutxxy0G16IW_ZBZvKsttMNj_TD4J3YSMo_9hhjZR3EYAReNCIRXn/" alt="RSS Feed" title="RSS Feed" style="vertical-align:middle; margin-right: 5px;border:none;" /></a><a href="http://feeds.feedburner.com/ID DE SEU FEEDBURNER" target="_blank" rel="nofollow">RSS Feed</a>
</div></td>
<td><div class="emailsbox">
<a href="http://feedburner.google.com/fb/a/mailverify?uri=ID DE SEU FEEDBURNER" target="_blank" rel="nofollow"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj_ENrbNqMvGZSrHTfKnnx04C-q0Z_1TiKZTAt_6APR6f5ycCqxLJ_NDIo_6SYa32msG79uCd1ZVOFf0_4pnWkmBibULqejSoRBLMBV0T1V05hC1t8TRlk8I81h0Z_OsoLJSbEO05MSTc01/" alt="EMail Feed" title="EMail Feed" style="vertical-align:middle; margin-right: 5px;border:none;" /></a><a href="http://feedburner.google.com/fb/a/mailverify?uri=ID DE SEU FEEDBURNER" target="_blank" rel="nofollow">EMail Feed</a>
</div></td>
</tr><tr>
<td><div class="twitterbox">
<a href="ENDEREÇO DE SEU TWITTER" target="_blank" rel="nofollow"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjj711WAtthEUYjSlIyf7ZarAKzjxUamw6zv9GZR8YRGNws21kF-dyrVRdDNMc9SGXOveuH78kiv01XRsQtXfaofukCOYyimM385JBN95GzB1kAcGovzQg43xFGnyLfSNmAupzWUS0AaUqr/" alt="Twitter" title="Twitter" style="vertical-align:middle; margin-right: 5px;border:none;" /></a><a href="ENDEREÇO DE SEU TWITTER" target="_blank" rel="nofollow">Twitter</a>
</div></td>
<td><div class="facebookbox">
<a href="ENDEREÇO DE SEU FACEBOOK" target="_blank" rel="nofollow"><img src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMArEFLF0K_zW0YMJw6x5n_3WeEYtCMr_qqSZBIH4Nl6RhG_7jRhP4zWMaTbnCtCBZvPlOw5Dl6DY2jyxMDG8T_hOVTqjQsPur6oObgYVHD4UmEMIGtsmUvT3j0dt_WloXQD18Ghy2ChdB/" alt="Facebook" title="Facebook" style="vertical-align:middle; margin-right: 5px;border:none;" /></a><a href="ENDEREÇO DE SEU FACEBOOK" target="_blank" rel="nofollow">Facebook</a>
</div></td>
</tr></table>
<p style="display:none;" align="center">Widget by <a href="http://www.ebloggertricks.com/" target="_blank">Eblogger Tricks</a></p>
<div class='addthis_toolbox'>
<div class='custom_images'>
<a class='addthis_button_twitter'><img alt='Twitter' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgMcEsmvUAwWcXf0ZCP1wIUln9iReiSVcuZKBUQ-kwMHZWbiU-2Osb1ZihCr0l2EijAVtmFX8K_II_Pdk0_2LnzsLSAfsiUnUGhLMPJHJ7qjjQClaldwNYXqt-P30nVwfWPitNETUghntg/' width='32'/></a>
<a class='addthis_button_delicious'><img alt='Delicious' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhg6r7UcUk69kIluDRXvqcUdYoLuJeWzOlu0lkYQGHgjftsRgip1lx1sgsoHx3OGXBonqcaTdwV0q8RsgnLgYwzXBOnw8pk3ILkUpLqDWbmWHewSREoZI6kig9vl_9Ca088ka_TxbpqkRQ/' width='32'/></a>
<a class='addthis_button_facebook'><img alt='Facebook' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgJzg2wXtgbHg_j-0DNV__IUVy0a9nbq9eLPsWgHXHP-I2YvvTFDiyt-_MLycgz_H4__q-4puwbcNkRvKWu9XGYO0kc-UgBsl3Pqbu7as36Ji-rPoml7d25vZan0MmUxOX6Z2sL5zwgDX4/' width='32'/></a>
<a class='addthis_button_digg'><img alt='Digg' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjenfcAaxeOhnltYQuE6acjO1Us2sSyLZB8oUc5TLfmXC-5-tPg8bSH0EMgvIG9QsJGzBrewFnF2JUfTQziibA8k6W49783mPbttjXFsU7xcBM4Cirbch8fH_rYXC-Hap-u1cE2TJ1kzqE/' width='32'/></a>
<a class='addthis_button_stumbleupon'><img alt='Stumbleupon' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjh__BzODjD3g69yjKQsniGNh7mUz1VGjYuCNcNEJ4fZbWmnnx_cURvVb5unkR6OUIT1mr3maEg9nWKVfGYrnBffit4Ei1W0asKTxO-Ic15k5YurAt5cNo4Q4IemqB59-u60H3nBGxqK8E/' width='32'/></a>
<a class='addthis_button_favorites'><img alt='Favorites' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlIo1llID1khVgw9KOUc8qaNTpivC2RuzDrPj-aYuJlX96sMtN6goNeXew5y32_l1MKvXZM0-U30ow989-ydtehoIOKU3Q0YNU_Viu6BA8WXTJ1aFkV_LXIzChawjOjO9dYDWWN0BMidY/' width='32'/></a>
<a class='addthis_button_more'><img alt='More' height='32' src='https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqixCvn2ElICPbdI9LM8zqXD-rxhO5H9_edjNx_EQAH8grgKlFtAcv6TLR2aLgauEsxxgoxIA4EEBUnUgJoWpMbC-Dyga7yLWARAM6fEIJyHMYLj9motNMU27dilhiVtmh9dG_2DdqMFs/' width='32'/></a>
</div>
<script src='http://s7.addthis.com/js/250/addthis_widget.js' type='text/javascript'/>
</div>
</div></script></div></div>
