I was just on LinkedIn creating a group and optimizing my profile. How did I optimize? By scoping out the competition. Ask yourself: "When someone is searching for me or my profession, what do they type?"
For me, it was "financial social media marketing." At the time, I was nowhere to be found. I clicked on the top people listed and noticed a common theme. All of them had three to seven entries for their current position names and were targeted in their title keywords.
For example, one of my current positions ended up looking like this: "financial social media marketing consultant | online marketing for financial and insurance advisors at Financial Social Media Marketing." After doing this for only ONE current position, I was in the top 10 for my search.
My "second" current position was similar and keyword heavy. Instantly I became the top spot for "insurance social media marketing" and in the top five for "financial social media marketing."