Tutorial: efecto link 3D

arriba de ]]></b:skin> copias y pegas lo siguiente:
a:link,a:visited{
text-decoration:none;
color:#000000;
}
a:hover{text-shadow: 2px 0 .2px #FF0000, -2px 0 .2px #00F1F5; -webkit-transition: all .4s ease-out;-moz-transition: all .4s ease-out;-o-transition: all .4s ease-out;transition: all .4s ease-out;}
-webkit-transition: all 0.7s ease-in-out;
-moz-transition: all 0.7s ease-in-out;
-o-transition: all 0.7s ease-in-out;
-ms-transition: all 0.7s ease-in-out;
transition: all 0.7s ease-in-out;
.main-inner h2.date-header {
background: #c6c5eb;
padding: 5px;
border-radius: 10px;
border: 1px dashed #fff;
text-align: center;
.post-footer-line-1{
background: #000;
color: #fff;
font-family: 'Trebuchet MS', Trebuchet, sans-serif;
font-size: 12px;
font-style: none;
padding-left: 4px;
padding-right: 3px;
padding-top: 2px;
padding-bottom: 2px;
text-align: justify;
-webkit-border-radius: 2px;
-moz-border-radius: 2px;
border-radius: 2px;
}

Tutorial: Mensaje en la pestaña

Pegar en un gadget html

{estilo marquee}
<script language=javascript>
msg = "aqui tu mensaje";
msg = "..." + msg;pos = 0;
function scrollMSG() {
document.title = msg.substring(pos, msg.length) + msg.substring(0, pos);
pos++;
if (pos > msg.length) pos = 0
window.setTimeout("scrollMSG()",200);
}
scrollMSG();
</script>

Tutorial: Efecto opacidad en imágenes #2

Plantilla | Editar HTML | CTRL+F y buscas:
]]></b:skin>
Y arriba de ]]></b:skin> pegas: 
 img {
border: 1px solid #efefef;
padding: 10px;
background-color:#ffffff;
-webkit-transition-duration:.5s;
-moz-transition-duration:.5s;
}

img:hover {
opacity:0.6;
-webkit-transition-duration:.5s;
-moz-transition-duration:.5s;

-Amary-

Tutorial: Efecto Img Rainbow 2 {faster}

Para cualquiera de los dos: Arriba de ]]></b:skin>

El que acaba en blanco y negro
img {
filter: none;
-webkit-filter: none;
-moz-filter: none;
-webkit-filter;(0);
-webkit-transition: all 0.7s ease-in;
-moz-transition: all 0.7s ease-in;
transition: all 0.7s ease-in;}
img:hover {
filter: brightness(0.7) contrast(5) grayscale(1) hue-rotate(360deg) invert(0.1) saturate(7);
-webkit-filter: brightness(0.7) contrast(5) grayscale(1) hue-rotate(360deg) invert(0.1) saturate(7);
-moz-filter: brightness(0.7) contrast(5) grayscale(1) hue-rotate(360deg) invert(0.1) saturate(7);
-webkit-filter;(1);
-webkit-transition: all 0.7s ease-in;
-moz-transition: all 0.7s ease-in;
transition: all 0.7s ease-in;
}

Faster {normal}
img:hover {
-webkit-filter: hue-rotate(1000deg) ;
-webkit-transition: all 0.3s linear;
-moz-transition: all 0.3s linear;
transition: all 0.3s linear;
}
img {
-webkit-filter: hue-rotate(0deg) ;
-webkit-transition: all 0.3s linear;
-moz-transition: all 0.3s linear;
transition: all 0.3s linear;
}