if u wanna exchange your link with me or other blogger juz copy the code on the sidebar and paste it on your HTML widget.
In order to make Link Exchanging Code, most bloggers use small banner or chicklet as the logo of their blog. To make a chicklet, you can use any design and graphic software such as photoshop, paint, and others. You also can use an animated chicklet for Link Exchanging Code. It all depends your skills in making chicklet work.
To make a banner with ur own creativity, u can can go through to this link and save that banner on ur own PC. Then, upload ur banner or photo at this site. Copy their link and paste it into the HTML code.
for more clear tutorial u can check this site.